Question about 2004 Chevrolet Cavalier

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P0300 multiple cylinder missfire

Idles rough, little power on acceleration

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You need a tune up... plugs, should have individual coils per cylinder, so just replacing plugs is all you need to do... that will fix it..

Posted on Nov 24, 2008

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What is code p0300?


P0300 - Random, Multiple Cylinder Misfire Detected Fault Code Definition
  • Random, Multiple Misfire Detected
Symptoms
  • Check Engine Light flashing
  • Rough running, hesitation, and/or jerking when accelerating
  • In some cases, there may be performance problems, such as dying at stop signs or rough idling, hesitation, misfires or lack of power (especially during acceleration), and a decrease in fuel economy
Common Problems That Trigger theP0300
  • Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable)
  • Incorrect ignition timing
  • Vacuum leak(s)
  • Low or weak fuel pressure
  • Improperly functioning EGR system
  • Defective Mass Air Flow Sensor
  • Defective Crankshaft and/or Camshaft Sensor
  • Defective Throttle Position Sensor
  • Mechanical engine problems (i.e.-low compression, leaking head gasket(s), or valve problems

Jul 25, 2014 | 2000 Dodge Durango

1 Answer

Engine codes pcm p0300, 301,302,303


p0300 is Multiple misfire on all cylinders , this could be a spark, running lean due to low fuel pressure or air leak or mechanical issue.
First of all check for any air leaks on motor. P0301 is missfire on Cylinder 1 hence the 1 on the end of 301 , 302 is cylinder 2 and so on. Cheers

Jan 07, 2014 | 2002 Ford Explorer

1 Answer

01 toyota avalon with codes PO300-306 car runs rough and idles rough now while driving it start loosing power and making a snake rattling sound


Is the rattling sound coming from the exhaust? I'm wondering if perhaps you have a loose catalytic converter. P0300 (multiple cylinder misfires) and P0306 (cylinder #6 misfire detected) are probably the cause as to why the car is sluggish, shakes, runs rough and lacks power. Make sure to take a close look at your ignition system (spark plugs, ignition wires, coils...). A spray bottle filled with soapy water can help you find voltage leaks on the wires and coils. Just spray the wires and coils and look for arcing. Replace any component that arcs. Other causes can be fuel injectors, vacuum leaks...).

Mar 03, 2013 | 2001 Toyota Avalon

2 Answers

I replaced head gaskets on 2004 dodge dakota. when started it ran rough and lacked acceleration. Code P0300 and o2 sensors showed. replaced all 4 O2 sensors, but still rough idle and code P0300


That's Random or multiple missfire code. Have you checked for proper fuel pressure? Improper fuel pressure will trigger this code if it's too low, thus causing a lean mixture in multiple cylinders.

Feb 26, 2013 | 2004 Dodge Dakota

1 Answer

Rough idle and poor acceleration


P0300 Random/Multiple Cylinder Misfire Detected
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zed-bull key programmer

Jan 28, 2013 | Cars & Trucks

1 Answer

I have a 1999 Chevy Blazer 4.3 . It is running bad . I used an OBD II scanner and it pulled up a PO300 code which suggests a Laundry list of things that could be wrong . ...


p0300 should be multiple missfire. check for compression these engines tend to bend valves very easily if ran on old gas or a batch of bad gas. causing it to missfire in more than one cylinder. they also crack heads between valves if overheated.

Mar 16, 2011 | 1999 Chevrolet Blazer

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E201@yahoo.comi have a 2004 cavalier with the 2.2 eng the check eng light stay on an it alos blinks..the car has a miss in it while idiling or accelerating but at a stedy speed it runs fine an has good...


well the light is blinking because of the misfire it is setting a P0300 engine missfire detected, a plugged fuel injector will cause that misfire or a incorrectly gapped spark plug, also a bad egr valve will cause a rough idle and acceleration problems.but for a correct fix with out throwing parts at it will have to be done by a pro

Dec 18, 2010 | 2004 Chevrolet Cavalier

1 Answer

2003 1500hd chevy silverado 6.0 liter. I had a



DTC Number
P0160 DTC Name O2 Sensor Circuit No Activity Detected Bank 2 Sensor DTC Number P0300 DTC Name Random/Multiple Cylinder Misfire Detected

Feb 17, 2010 | 2003 Chevrolet Silverado 1500

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