Question about 1996 Chevrolet Cavalier

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I have a 2002 cavaliry Z24. It has the 2.4 engine. It has a bad miss. The trouble code that was givrn was po302. I have replaced the spark plugs and wires. I was wondering if there is a way to test the coil?

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  • Chevrolet Master
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P0302 is random misfire on cylinder #2.

Most comment cause is vacuum leak at the intake manifold and vacuum hose.

If you valve cover is leaking oil on then DO THE HOLD JOB.

Remove valve cover to gain access the intake manifold.

Change the intake gasket and valve cover gasket.

Posted on Dec 12, 2009

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2004 GMC Envoy misfire


If you pull the #2 plug out and start the engine do you see a spark? You didn't mention if you checked the wires or not, but it could be a bad plug wire. If there is a spark, I'd try and see if the #2 injector is actually firing like you mentioned above.

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2004 f150 5.4l dtc po171 and po302


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My 2002 envoy has a miss that just started==was driving on the freeway for about 40 miles @70 pulled n a station to get a drink ==started it back up and it started missing like a dead plug or coil i...


2002 Envoy sle 4.2 L straight 6. Random misfire(PO300). After erasing codes for several days, I finally took my car on the highway and ran it at high speed(70+) for about 4 to 5 miles. Check engine light came on as before but this time it gave me(PO305). Random misfire cylinder 5. So I switched coil 5 with coil 2. Went back out on the highway and repeated as before. This time it gave me(PO302). This was telling me I had a bad coil. Replacing one coil pack solved the problem. The professionals told me low fuel pressure would not give me random misfire, but rather a O2 code because the engine is running lean. Thank you------------------------------------ thank you very much.

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Misfire third sparkplug


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- OBD-II Trouble Code P0300? http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html
----------- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

-----------
Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------
While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

------------
Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

--------------
Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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This will help.

Thanks.

Jan 25, 2012 | 2003 Chevrolet Venture Passanger

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2002 Ford Mustang GT I used OBD-II to get the trouble codes, I got P0174,P0301,P302,P316 Freeze Frame Information: 1. DTC for which Freeze Frame was Stored - P0174 2. Fuel System 1 Status - Closed...


Because you got a misfire on cylinder #1 PO301
A misfire on cylinder #2 PO302
Misfires first 1000 rev PO316
O2 Codes PO 174
Etc,Etc


The LTT, is the result of not learning (yet-thus long term)
what isn't working correctly---Your Engine

Replace bad Coil--which ever is missing
Do not go by the codes,alone ,TEST

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2 Answers

Service engine is on again and the mechanic said it was number two cylinder miss fire


the trouble code number for a #2 missfire is po302 which is usually caused by bad spark plugs and or plug wires so i would recommend doing a tune up and clear the code and it should be fixed worse case if plugs and wires don't fix it, which it more than likely will, you may have a bad ignition coil

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Misfire on Cyl #2


How is your oil filter? It might be plugged...

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2002 ford escape xlt eng codes po302 ?????


Zeevert was right about all but one thing. Cylinder two is the rear middle cylinder on a V6 or the second one from the passenger side on a 4 cylinder.

May 16, 2009 | 2002 Ford Escape

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