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2005 chevy exspress 2500 p0300 p0200 misfire cly 5,6

Misfiere p0200 think its electrical

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Tune up,and boots need replacing most likely

Posted on May 13, 2010

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Malibu 2006 4 cyline lt code po300


Debbie, code p0300 is a random misfire code,
- bad spark plug (s)
- bad ignition coil (s)
- plugged or faulty fuel injector (s)
- Intake leak
- injectors harness is open or shorted
- Injectors circuit has poor electrical connection
- Ignition coils harness is open or shorted
- Ignition coils circuit poor electrical connection
- Insufficient cylinders compression
- weak fuel pressure
see links below,

2006 Malibu P0300 random misfire

2004 Chevy Malibu with Code P0300

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0ahUKEwj3i8uU-YbLAhVImx4KHaOhDcoQFghMMAg&url=http%3A%2F%2Fricksfreeautorepairadvice.com%2Ftag%2Fp0300%2F&usg=AFQjCNEEy9v40AO2Se1VIp-iekkFnE_E2g

Feb 20, 2016 | Cars & Trucks

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P0300 code keeps flagging. misfire occurs during acceleration to letting off of accelerator pedal at 2500 rpm or higher.


Could be a bad ignition control module or a compression issue as well. A methodical diagnosis needs to be performed so you don't keep chasing your tail and spending tons of time and money on this issue. Looking up a factory manual that covers your specific vehicle and testing operation of all suspect systems would be my next move. Misfire under load isyour symptom, the cause can be mechanical or electrical.

Mar 05, 2015 | 2005 GMC Sierra 2500HD 4WD

1 Answer

P0305 and p0200 on a 2003 chevy blazer 4.3 , runs really rough


P0305 is a misfire on number 5 cylinder replace spark plugs, wires cap and rotor button. Please note: Does the ac cooling line/hose go over top the distributor ? If so GM/CHEY had a problem when dripping from that AC line/hose dripped down onto the distributor. That caused miss fires after a time. I hope this helps, Lee.

Feb 09, 2014 | 2003 Chevrolet Blazer

1 Answer

Po200 and po300 codes


in my DTC book p0200 is a Injector circuit malfunction and p0300 is a Random/Multiple Cylinder misfire so I would check wiring for both and maybe change plugs an wires I think you have broke wire that is shorting out so I would try to clear the codes either with a code reader or by disconnecting the battery for like 15 min and see if/how long it takes to code again after you get the injector wiring checked

Nov 10, 2013 | 2002 GMC Sierra 1500HD

1 Answer

CODES P0200 /P0300 /P0443


po200 is injector circuit malfunction,po300 is random/multiple cylinder misfire,po443 is evaporative emission control system purge control valve circuit malfunction.

Sep 03, 2012 | 2003 Chevrolet Astro

1 Answer

Misfire 5,6 clyd code p0300 p0200


Well P0200 is a detected malfunction in one or more of your fuel injectors.
P0300 is multiple misfire detected.
I would guess that the P0200 code is causing the P0300 code so find out why you are having an injector issue.
Possible causes: check fuel and air filter, fuel pressure, coil performance, and injector performance. The coils and injectors need to be viewed through a scan-tool. Looking at live data and performing tests. Without it you can try to look at plugs and see if you can notice anything or use a devise that measures temperature. A cylinder that isn't firing will run cool. Good-luck.

May 13, 2010 | 2005 Chevrolet Express

1 Answer

Chevy 3500 Express truck. fuel problem?


IF YOU GOT CYLINDER MISFIRE.OR OPEN FUEL INJECTOR.THAT WILL CAUSE THE PCM TO ENRICHEN FUEL MIXTURE.TO ADJUST TO DEAD CYLINDER.WHICH ACT AS A LARGE VACUUM LEAK.THATS WHY YOUR EXHAUST TAIL PIPES HAS A RAW FUEL SMELL AND WHITE SMOKES.

Sep 03, 2009 | Chevrolet 3500 Cars & Trucks

2 Answers

Has terrible miss


p0200- INJECTOR CIRCUIT CONTROL

Nov 30, 2008 | 1998 Chevrolet S-10 Pickup

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