Chevy malibu cranks but wont start

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Chevy malibu cranks but wont start. I have the same issue on 2 Chevy Malibu Eco 2013 cars which i imported from USA, shame to see after all that wait that i can t drive either and according to Chevy here they Generator module have been replaced already, but still we have this warnings 1. Service Battery Charging System, 2. Engine Managment light on.

repairman54 said: You need fuel, air and spark in the correct sequence for a engine to run. No codes with a crank but no fire I would suspect / check for fuel pressure as a bad in tank fuel pump will not set a code. i press the part where the fuel line runs on the engine bay. Fuel shoots out, so I dont think it's fuel.

If the coil is bad the gas could never be ignited and the engine won't start. If your hhr doesn't get enough fuel or any fuel at all, you might have a bad fuel filter, bad fuel pump or bad fuel injection. The hhr can crank but not start without the correct amount of fuel entering the combustion chamber.1. Weak Battery. If your Colorado's engine won't crank or cranks very slowly, then the most likely culprit is a weak or dead 12v battery. Investigating more closely and doing a battery voltage test will clarify whether the starting problem is due to the battery. A test can be done to measure the voltage between the battery poles, check the ...Mar 21, 2020 · The ECM energizes each fuel injector by grounding the control circuit. The ECM controls each fuel injector with 65 V. This is controlled by a boost capacitor in the ECM. During the 65 V boost phase, the capacitor is discharged through an injector, allowing for initial injector opening. The injector is then held open with 12 V. Assuming it won't run with outside fuel; disconnect the battery, touch the cables together, remove the fuel pump relay and the spark plugs. Then have a helper crank it while you ground the plugs on the block, checking for spark. If there's spark, then a compression test is next. I did a similar test, but again, probably should have done it that ...2012 chevy malibu 2.4 key turns over wont start. 2012 Chevrolet Malibu 1LT FWD-Maintenance & Repair. car will turn over but will not start 4 Answers. my car will not start, thought it was the battery cable but it is not. it turns over but won't start. 2000 Chevrolet Malibu LS FWD-

3053 posts · Joined 2011. #5 · Dec 19, 2013. If the check engine light doesn't light up, the ECM isn't being powered up, assuming the check engine light worked before the no start issue. Look in the underhood fuse block and the I/P fuse blocks for fuses labeled IGN or ACC and check to see if they have power in the key ON position.on March 08, 2017. So every day when I first start to crank my blazer, (2001 Chevy blazer 2wd, 2door, 4.3) the motor will turn and turn but not start. If I spray starting fluid through breather and try to start it will crank and run until I cut it off. If it sits for a couple hours it will do the same thing, wont start til I use starting fluid.Does your Chevy Malibu not start when you turn the ignition. Does it SOUND and ACT like it is out of gas, or the fuel pump is bad, or that there is no spark ...The engine coolant temperature gage defaults to 38°C (100°F) or below if: The PCM detects a malfunction in the engine coolant temperature sensor circuit. The BCM detects a loss of class 2 communications with the PCM. The IPC detects a loss of SPI communications with the BCM. The IPC displays the fuel level as determined by the PCM.G. gibvel Discussion starter. 17 posts · Joined 2010. #1 · Jun 12, 2011 (Edited) My son took his 03 Malibu to work this morning and 3 hours later it now just turns over and won't start. I crank on it but can't smell any fuel at the tailpipe... I was figuring this means it's not getting fuel. Fuel pump. Found some things here with "fuel pump ...

1. Battery Cables. If you have a battery post that looks like this, it may be keeping your Colorado from starting. Start by taking a look at the battery posts. If they are loose or corroded, it acts as a barrier that can keep the starter from getting the voltage it needs to crank the engine.Here are some of the tools that jimthecarguy useshttps://www.amazon.com/shop/jimthecarguyDon't over look the ignition switch.Engine cranks, no spark, no inje...engine crank but no start problem. So I had my first problem at about 40k miles. After a 45 mile commute I had to make a stop and when I got back in the truck to start it, it would crank but not fire. Battery was good and I could hear the fuel pump prime so ruled that out. I searched around the net for some leads but couldn't find anything ...May 22, 2021 · Reaction score. 1. Richyd said: I have a 2013 Equinox with the 2.4 and has 111,000 miles on it came out the other day and it cranks over but will not start.Had it towed in has no codes has good compression and fuel. Was told that there is 12 volts on a reference wire and shouldn't be. They replaced ignition switch and that didn't solve it now ... 2013 chevy malibu 2.5 cranks but no start. Mechanic's Assistant: Have you checked the engine 's fuel supply? Are the spark plugs, fuel pump, and ignition all working? Good fuel pressure gets spark. Mechanic's Assistant: What's the approximate mileage on your 2013 Malibu? 200.000. Answered in 2 minutes by:2012 Malibu, 2.4, 68k miles. It cranks, there is power everywhere, but it just won't start. The first time it happened it was an "only mostly dead" battery, towed to the shop, replaced battery and off we went. The other first time it happened it was towed to the shop.

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Additionally, if your car is experiencing crank but won’t start issues, my guide ‘Comprehensive Guide to Diagnosing and Fixing Car Crank but Won’t Start Issues‘ serves as an invaluable companion. It offers a detailed breakdown of the components involved in the starting process, including the ignition system, fuel system, and mechanical ...Chevy Malibu - (Dana J Lewis / Shutterstock) The most common causes for clicking noise and no crank in Chevy Malibu are weak battery, corrosion on battery terminals, poor starter electrical connection, bad ground connection, and faulty starter motor. 1. Weak battery. The leading cause of clicking noise and no start in Chevy Malibu is weak ...You have to start somewhere so do this: (1). Pull the coil wire off the opti and see if it's sparking. If it's a nice blue spark good that means your opti is receiving spark. (2). Pull the number one wire from the spark plug (insert an extra spark plug if you have one) into the end of the wire and see if it is sparking.Please read below the most possible causes for it as well. 2012 Chevrolet Malibu. L4-2.4L. DTC P0010. Symptom Descriptor. Probable Causes. 1- Camshaft Position (CMP) Intake Actuator Solenoid Valve. 2- Engine Control Module (ECM) Please Let Me Know if you can view the odf file.5 Case for 2004 chevy silverado cranks but won’t start. Tools You May Need: Basic Tool kit; Several quarts of oils; Gallon of coolant; Heavy gloves and towel; Electrical tester; Let’s check which case you face! Case 1: 2004 Chevrolet Silverado the key won’t turn in the start. If the key won’t turn in the start, it may happen for several ...

Replaced my distributor (MSD), installed new factory wires, spark plugs (Gap .050) and coil on my 1993 corvette. The car cranks but won't start. When I stop turning the key the crankshaft pulls backwa … read moreB. Bilmart Discussion starter. 5 posts · Joined 2010. #2 · Nov 7, 2010. 2000 Silverado Starting problems. 2000 Silverado Ext CB Z-71 5.3 Gas. Has a intermittent problem that is now severe, cranks with no start. If I turn the key and the dash gauges wont move I know it's not gonna start. Only light on is the message center with the red battery ...My 2016 chevy Malibu wont crank. Will turn over but wont start. Was running fine before it stopped. Stopped and got gas - Answered by a verified Chevy Mechanic ... Chevy express 2500 2006 4.8L 8 cyl with gas in the tank will crank-won't start. Pulled a spark plug wire and cranked with plug wire to chassis- it sparked.Ask Question. Asked 9 years, 10 months ago. Modified 6 years, 4 months ago. Viewed 5k times. 3. I have a Chevy Malibu '05 4 cly 2.2l that cranks but does not start. I already put starting fluid in the intake and it started up and died real quick, which tells me there is spark but no fuel. Does anyone know what's going on?In the past, if a car would not start or run, there were 3 things : fuel, spark and pump. Nowadays mostly only one :computer. J. JessicaBoz Discussion starter. 5 posts · Joined 2020. #9 · Mar 29, 2021. It was a ground to the ECM module. Also, the mechanic said that one of my connectors for the injectors was going bad.Reaction score. 1. Richyd said: I have a 2013 Equinox with the 2.4 and has 111,000 miles on it came out the other day and it cranks over but will not start.Had it towed in has no codes has good compression and fuel. Was told that there is 12 volts on a reference wire and shouldn't be. They replaced ignition switch and that didn't solve it now ...SOURCE: my chevy malibu wont start. Hey Debbie. When a car wont start, there can be many things that can cause this. It can get real frustrating real quick. ... 2002 chevy malibu cranks but wont start. you should check the battery, if it is all right, you should try to check the starter and ignition. _____ Launch X431.'05 Classic with the 2.2l Ecotec motor. Was running fine, starting fine, no problems. Yesterday I drove it to softball practice. When I go to start it to go home, it won't turn over. Cranks, but no start. It's cranking good, so I know the battery is good. I took off the Schrader valve and checked presence of fuel at the fuel rail.Turns out, the tank had a crack despite being recently replaced. After replacing it, was on the highway and my car overheated, a coolant hose had blew open, and now it won't start even after a jumpstart. I'm checking for liquid in the spark plug well tomorrow, but was wondering if it's possible the non-start could be a blown head gasket or a ...

JOHN1227. MEMBER. 1995 CHEVROLET LUMINA. 100,000 MILES. I HAVE THIS CHEVY LUMINA 3.4 IT JUST SOUNDS LIKE IF IT WANTS TOO TURN ON BUT IT DON'T. * I CHECK THE SPARK PLUGS AND IT HAS SPARK. * I CHECK THE FUEL PRESSURE AND IT HAS 55%. * I CHECKED ALL THE SPARK PLUS TO SEE IF THEY WERE WET AND NO THEY WHERE DRY.

I have a Chevy Malibu 2012 LT turns over but starts every now and then.. 156,000 miles I've replaced the fuel pump a year and 11 months ago and crankshaft position sensor. Both relays front and back. Mechanics can't seem to figure out why it won't start. Engine light is on and off i heard i might need to replace crankshaft actuators now.The ECM energizes each fuel injector by grounding the control circuit. The ECM controls each fuel injector with 65 V. This is controlled by a boost capacitor in the ECM. During the 65 V boost phase, the capacitor is discharged through an injector, allowing for initial injector opening. The injector is then held open with 12 V.It sounds like it's trying to start but won't. The key only comes out in vans that are equipped with the V.A.S.T system. Weirdly banging on the dash sometime...DrivenDaily. 22276 posts · Joined 2009. #2 · Feb 5, 2021. If the battery is the original unit, it may need replaced. If yours has a second battery, it is recommended to replace both at the same time. '11 LTZ, born Aug 2010, Fairfax, KS. V6/A6, Red Jewel Tintcoat / Cocoa-Cashmere, Sunroof.If the fuel pressure is low, the check the fuel pressure regulator and see if it's sticking. The fuel pump may not be coming on crating a loss of fuel pressure at the fuel rail. If there is fuel pressure, spark, and air, then the mass air flow sensor (MAF) might be malfunctioning or dirty. Remove the MAF and clean it with an electrical cleaner.2012 chevy malibu 2.4 key turns over wont start. 2012 Chevrolet Malibu 1LT FWD-Maintenance & Repair. car will turn over but will not start 4 Answers. my car will not start, thought it was the battery cable but it is not. it turns over but won't start. 2000 Chevrolet Malibu LS FWD-01 malibu car cranks but wont start theft light blinking - Chevrolet 2001 Malibu question. Search Fixya Browse Categories ... Malibu 2013 makes a ticking sound when trying to start it .plus the engine light blinks as the engine is ticking but wont start . 2013 Chevrolet Malibu; Open Questions: 0 answers. 2001 malibu 3.1 no power until 3000rpm ...The 2017 Chevrolet Malibu has 3 problems reported for won't start. Average failure mileage is 25,650 miles.

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If you have a 2005 Chevy Malibu that won't start or crank, watch this video to learn how to diagnose and solve the problem. You will see how to test the ignition control module, the crankshaft ... Find "E", then count down to 6 and it should be a gray wire. THAT WIRE needs to be HOT when the FP is supposed to be running. If it's not, check the 15A fuse and/or the relay. If it is, then check the gray wire at the FP, or as close as you can. If it's hot, then unplug the FP and see if it has continuity to ground.Dec 25, 2012 · No Start 1: Checking For Spark. The majority of the cranks but does no-start conditions I've troubleshooted and repaired (on GM 3.1L, 3.4L equipped vehicles) had their root cause in the ignition system. So, the ignition system should be the first thing to check. Testing the ignition system, to see if it's the cause of the no-start condition on ... Received 732 Likes on 683 Posts. If you have spark and injector pulse on 2 or more cylinders it's not the ECM. 92-93 ECMs canbe hard to find ussd or remanufactured, but they do show up in parts wanted - for sale sub forum. Most of the time they have to be sent out for repair. Fuel pressure should be over 42psi and hold.Aug 3, 2020 · no. the cam sensor doesn't need to be replaced. and yes, sometimes the engine will start with that sensor unplugged because the ECM is going into default. Default like the ECM doesn't have to detect the crankshaft sensor to start the engine. it makes up for the lost signal at times. so yes. Nov 10, 2020 ... Car wont start just clicks once (Problem Solved). WatchVicTow · 421K views ; Engine cranks but won't start .Passlock 2 problem.2004 Chevy Classic ....Feb 5, 2023 ... Comments4 ; Your Car Won't Start? Crank But No Start? Diagnose And Fix Your Car Now! Budget Mechanic · 116K views ; 2011 Chevy Cruze intermittent .....Replaced my distributor (MSD), installed new factory wires, spark plugs (Gap .050) and coil on my 1993 corvette. The car cranks but won't start. When I stop turning the key the crankshaft pulls backwa … read moreI have a 2009 Chevy Malibu that wont start replaced the starter and batt but still nothing wont turn over anything only thing i hear is the relay clicking when i turn the key checked all fuses all were good can somebody please help me. Posted by Robert Turner on Nov 19, 2012. Jim Hurula Dec 07, 2012. I have the same issue and put the car in ... ….

2011 Chevy Malibu Cranks but won't start after wa up Warm up. Once the engine sits for maybe 15 mins it starts normal - Answered by a verified Chevy Mechanic. ... Just had fuel pump installed but 2007 Malibu won't start. Turns over but seems not to be getting fuel. Did once in a parking lot and leaving sit for a few hours it started.Malibu Larry said: PROBLEM: Car has intermittent starting problem. Car will start in morning, and usually several times during day. However, car will have starting problem if attempt to start occurs about 1 to 2 hrs after last drive. Car will crank, not start. However, after this, wait 15-20 minutes after episode, and car usually starts.I have had this 2006 Malibu for years and years and years and I have never had any problems with the car. Probably the best running car I've ever had. However, recently, about a month, maybe a month and a half ago, my car all of a sudden just wouldn't turn over. I kept trying it over and over and it started eventually.1. cleaning the throttle body specially the IAC plunger and its chanel. 2. MAF sensor cleaning and electrical testing if possible. 3. checking for bad contact at maf sensor's plug and wiers continuity. otherwise it is electrical could be the wiring to the fuel pump itself specially the plug close to the fuel tank.3053 posts · Joined 2011. #5 · Dec 19, 2013. If the check engine light doesn't light up, the ECM isn't being powered up, assuming the check engine light worked before the no start issue. Look in the underhood fuse block and the I/P fuse blocks for fuses labeled IGN or ACC and check to see if they have power in the key ON position.5 posts · Joined 2022. #1 · Aug 23, 2022 (Edited) My 2019 Chevy Malibu won’t start and after I towed the car to a garage, the mechanic told me that the problem is a broken fuel control module, so we try to order the part with the dealer and found that it is not in stock! It is on back order with no ETA! I start looking on line and found one ...An ECT sensor problem cannot cause a no crank. But these issues can: _____ #PIC5234: Intermittent No Crank No Start With No DTCs - (Sep 1, 2009) Subject: Intermittent No Crank No Start with no DTCs Models: 2008-2010 Chevrolet Malibu 2007-2010 Pontiac G6 2007-2010 Saturn Aura -----#1 · Apr 8, 2021. I've got a 2012 Malibu, 2.4L 4cyl. Car will crank but not start. I checked fuel pressure at the rail. It comes up instantly to between 50 and 60psi. It is definitely … Chevy malibu cranks but wont start, Apr 30, 2022 ... If you're having issues with your fuel delivery this may fix the problem. Engine size is 2.4l but may be the same fix for all Chevy vehicles ..., 8. 172. 358. Posted: Mar 17, 2017. Options. sailer342 , Stalling issues bad sensors TPS, MAP, MAF, IAC, O2, failing knock senor, faulty injectors, dirty throttle body, EGR valve, vacuum leak, failing fuel pump, etc.etc.. To avoid throwing guesses and parts at your truck, have the truck scanned for trouble codes as a first step. Some of the auto ..., Insert the key in the ignition, turn the key to run position ( do not start ) and leave it in that position for 10 minutes. Cycle the key to LOCK position, count to 10, then turn the key back to run position and leave on for 10 more minutes. After the 10 minutes is up, repeat the procedure (1) more time and the security system will relearn the ..., enginecreator answered 7 years ago. Then I would start with a tune up Cap, rotor button, Spark plug wires, may check all their connections and use dielectric grease on all plug wire boots, check electrical connections there and around that area. There is a pick up stator module under the rotor button mount, has a 2 or 3 wires running to it, it ..., 5 posts · Joined 2008. #1 · Jan 17, 2008. I have a 2004 Colorado Z71 3.5L 4x4 with a little over 50k miles. Today, I went out to start it and it turned over but would not start. This was the 3rd time in a couple months that this has happened. All three times I tapped on the fuel tank with a hammer in case the fuel pump was stuck and also ..., Won't start after battery disconnected. I have a 2006 GMC5500 6.6L Duramax with a Regency hauler body, air ride and air seats. A month ago I drove it to a friend's garage for the winter (used to haul a race car trailer). Parked, turned off, noticed left side air pump still running. Couldn't determine what fuse governs that (owner's manual ..., The distributor contains a camshaft position sensor (CMP), but a bad CMP would not prevent starting. To diagnose Chevy Silverado won't start conditions with the 4.3 engine, start by checking for good fuel pressure. Then check for spark. If you don't see spark, check for pulsed ground to the IGN coil while cranking., Engine Size. 454 - Turbo 400 - 3.73. 9x out of 10, on an HEI system, if you have both fuel and spark, then the problem is the ignition module. Let us know if you need help replacing that. Many times, Auto Zone or those places that test starters and alternators can also test modules. But, I've also seen modules test GOOD, but were actually bad., 1996 CHEVROLET S-10. 4 CYL. 2WD. AUTOMATIC. 94 MILES. Car cranks but no start on a 96 chevy s10 p-u v4. done a COMPLETE tune up about 3-4 months ago along with an engine coolant flush and fill., 4 posts · Joined 2018. #1 · Feb 19, 2018. Have a 2007 Chevy Malibu 2.2L LT with 140,000 miles on it that cranks but does not start. New spark plugs. New battery. New crankshaft position sensor. Getting spark at all four cylinders. No codes thrown besides P0449. Can hear fuel pump priming., Pamela Anderson is renting her $7 million Malibu home for $50,000 a month. Check out photos and details about the property here By clicking "TRY IT", I agree to receive newsletters..., Intake manifold, and install the cruze fix it kit. Replaced all of the above. Engine cranks but does not start (even with ether). Has comp, has spark and has fuel pressure. Replaced Crank sensor, coil, (old one had a crack) cam sensors, throttle body, pressure sensor and over the weekend the computer. BTW never has thrown any codes so that is ..., Engine Cranking, No Start. Here are the common issues that can cause your Equinox to crank but not start. Your vehicle’s engine needs air, fuel, and a spark to run. It is highly likely that if the engine is cranking but not starting that it has thrown an OBDII code. Use an OBDII scanner to check and see if the engine has thrown any trouble codes., The most common reasons why a car cranks but won't start have to do with a lack of fuel, compression or ignition. However, battery problems can also come into play. Here are five of the most common complaints. 1. Lack Of Fuel. For the engine to get started, fuel must enter the combustion chamber. The fuel will mix with the air for proper ..., Cranks but wont start. How to fix a car that cranks but wont start, DIY with Scotty Kilmer. Car cranks but no start diagnosis, inspection, tips and tricks to..., I was thinking there are 5 major things that are needed to start an engine. 1. Proper cranking speed (battery-starter) 2. Good compression (cylinder comp-proper valvetiming/timing chain) 3. Air (filter/even check iac motor)maybe unplug it and see if theres a difference) 4. Fuel., 2012 Chevy cruze Lt. 1.4L turbo cranks but wont start, i have checked fuses checked relays. while cranking you can smell fuel. when my son drove it had over heated so he immediately cut the car off while fluid was coming out through the thermostat.We found a small hole where fluid came out. After it cooled the next day we were going to move it ..., 2011 Malibu cranks but won't start. So my car was running fine, but the rear window defoger didn't work. I checked the fuse and found it was burnt, when I tried to remove it it just fell apart but part of it was stuck in the fuse box. So I took the fuse box out and removed the piece., 1. Loose Battery Terminal (Likely) A loose battery terminal can cause your Chevy Malibu to have flickering dash lights and a no start condition. If a terminal is loose, the electrical connection to the car is bad, and the dash lights can flicker without it starting. It's easy to tell if the battery terminals aren't tight., B. Bilmart Discussion starter. 5 posts · Joined 2010. #2 · Nov 7, 2010. 2000 Silverado Starting problems. 2000 Silverado Ext CB Z-71 5.3 Gas. Has a intermittent problem that is now severe, cranks with no start. If I turn the key and the dash gauges wont move I know it's not gonna start. Only light on is the message center with the red battery ..., This one is for the LM2 (3.0L) Duramax engines. Although we too have a few no start cranking issues I don't believe it has anything to do with the fuel supply system... more like crank sensors and just some software glitches. This is an older thread, you may not receive a response, and could be reviving an old thread., DrivenDaily. 22276 posts · Joined 2009. #2 · Feb 5, 2021. If the battery is the original unit, it may need replaced. If yours has a second battery, it is recommended to replace both at the same time. '11 LTZ, born Aug 2010, Fairfax, KS. V6/A6, Red Jewel Tintcoat / Cocoa-Cashmere, Sunroof., 1. cleaning the throttle body specially the IAC plunger and its chanel. 2. MAF sensor cleaning and electrical testing if possible. 3. checking for bad contact at maf sensor's plug and wiers continuity. otherwise it is electrical could be the wiring to the fuel pump itself specially the plug close to the fuel tank., 2003 Malibu 3.1 with just at 100000 miles, when the car is cold and the first attempt to start the car you turn the key to on and the fuel pump runs and then shuts off and all the instrument panel lights and gauges come on and up and look normal. When you turn the key to start the engine cranks over but will not fire, at the time you turn the ..., My 2002 Chevy Malibu cranks but it won't start. I know for a fact that it IS firing though, the fuel pump works, and the other day, the THEFT SYSTEM light came on while I was driving. ... My 2002 Chevy Malibu wont start fuel pump is fine not the theft thing never cuts off while driving not the key battery is working ..., Jun 24, 2015. 14. Jun 24, 2015. #7. It hums then shuts off. The pump works, because the trailblazer can turn on but only when gas is put through intake and then it starts. I think it could also be dirty fuel lines. I don't know what the fuel pressure regulator does but I feel like it could be the problem. C., Engine Cranking, No Start. Here are the common issues that can cause your Cobalt to crank but not start. Your car's engine needs air, fuel, and a spark to run. It is highly likely that if the engine is cranking but not starting that it has thrown an OBDII code. Use an OBDII scanner to check and see if the engine has thrown any trouble codes., In the past, if a car would not start or run, there were 3 things : fuel, spark and pump. Nowadays mostly only one :computer. J. JessicaBoz Discussion starter. 5 posts · Joined 2020. #9 · Mar 29, 2021. It was a ground to the ECM module. Also, the mechanic said that one of my connectors for the injectors was going bad., 1990 Chevrolet G20. Asked by ISFP_gal in Newark, OH on September 11, 2019. 2 wks ago my 84 Chevy g20 van stalled while driving an wouldn't start back up well after i did some investigating i discovered fuel dripping from the carb. I figured out that something was keeping the valve open most likely some rust from the line i then read somewhere ..., Malibu Larry said: PROBLEM: Car has intermittent starting problem. Car will start in morning, and usually several times during day. However, car will have starting problem if attempt to start occurs about 1 to 2 hrs after last drive. Car will crank, not start. However, after this, wait 15-20 minutes after episode, and car usually starts., I was Installed pump assembly in 2018 and now pump needs replaced again.AIRTEX E3622S - FUEL PUMP & AssemblyDENSO 9515016 - FUEL PUMPDENSO ..., To prime, a fuel pump after running out of gas, follow the below steps. Open the hood of your car and locate the fuel pump and manual primer for it, which will usually take the form of a lever or plunger. Open the bleed plug (plug to eliminate air from the fuel system) on the fuel filter closest to the fuel tank., Code is for rich condition. Flood on cold start could be do to a faulty engine temperature sensor. You need to see what temp. ECT sensor is reading on a cold start via scan tool. Check inlet temp. also. PCM adjusts fuel richer for colder temps. so if PCM see's colder than what it actually is it could flood motor.