Question about 2002 Ford Mustang

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Miss on " 3 cylinder

I have a miss on # 3 cylinder the check engine light is on and I have a code of p0303

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  • yadayada
    yadayada May 11, 2010

    You just posted this for the second time right?

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Spark plug?

Posted on Nov 19, 2008

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1 Answer

Error code p0420 and p0303


Code 303 is a miss or lack of power on cylinder 3. If you know for a fact that cylinder is getting spark it could be an injector problem.
Code 420 means the catalytic converter is not performing up to standard which could be several things including the miss on cyl 3.

Jan 30, 2014 | 2005 Chevrolet Trailblazer Ext

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Codes p0171 p0303 p0325 car missing


p0171 = fuel system too lean, this means vacuum leak or faulty oxygen sensor

p0303 = cylinder 3 misfire

p0325 = knock sensor malfunction.

p0303 and p0325 - i can see these working together, if a cylinder misfires, it will cause the knock sensor to trip. I would lean towards the coil and or ignition module, along with a faulty oxygen sensor.

Dec 08, 2013 | 2000 Nissan Altima

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Searching for youtube p0303 censor for chevrotel astro


that code is not a sensor code that is a missfire code , you have a miss fire in cylinder number 3 , check you spark plugs or coil for that cylinder , with that code car will run rough ( shaking ) and some time the car wont even start in small engine . let me know hosw it gos

Mar 23, 2013 | 2000 Chevrolet Astro

1 Answer

P0303 cylinder misfire


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
---------Car misfires and error code P0306 and P0303 is shown? http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html
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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

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Bad miss at idle?

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

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While stop engine idles like cylinder missing?

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

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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

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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 23, 2012 | 1999 Subaru Legacy

1 Answer

Misfire code p0303 ruff idle spuds like tapping of valves check engine light blinking


P0303 mean Cylinder 3 Misfire.

Consider replacing the Cylinder 3 Spark Plug. If that does not settle it,replace the wires too.

Good luck.

Oct 20, 2010 | 1994 Oldsmobile Cutlass Supreme

1 Answer

2004 for freestar engine code P0303 and P0316 went thru a big puddle last night and then light casme on drove today still on and still runs a little rough


The number 3 cylinder ,and the number 7 cylinder are missing,check,or replace the coils for these cylinders to solve the problem.

Jul 10, 2010 | Cars & Trucks

3 Answers

1999 jeep cherokee 6 cylinder engine light


1.Plugs
2. Vacuum leak
3. Injector fault
4. High or low fuel pressure.
Thats the list of things to check.
This is a #3 cylinder misfire.
There is also TSB about #3 injector needing added heat protection. This could definitely be the cause. I start at plugs and go from there.
Hope this helps.
Thank you,
Lee

Dec 12, 2009 | 1999 Jeep Grand Cherokee

2 Answers

1996 Pont Grand Prix ---- P0303 again & again


The Specific code "P0303" is stating that the Third Cylinder or Cylinder number 3 Is mis-firing, thanks to all that you have done this has narrowed it down to two "confirmed" possible problems;

The first is that the Exhaust VALVE itself may be "Burned" and the Second may be a Poor condition or "Faulty" Catalytic converter(s).

This is only a possible cause but please keep in mind that on some certain models (not too sure about this specific model) there are multiple O2 Sensors located in different spots. (usually in or next to the preliminary and primary catalytic converts)

Also one of my experiences lead me to beleive that the Ignition Control Module (ICM) may be faulty causing the injector to not provide proper Fuel to the Cylinder.which will more often than not cause the computer chip to sense the misfiring as opposed to the bad signal from the ICM.

Hope it helps you out, and good luck.

Aug 17, 2009 | 1996 Pontiac Grand Prix

2 Answers

Check Engine Light is on and the code is P0303


Hello I need a help.
I have 1999 lincoln town car 4.6L V8.They have check engine light on. P 0303 cylinder 3 missfire.
I was changed spark plugs,fuel filter. check compression test 150psi. fuel pressuer 50.
swiching cylinder 1 to 3 fuel injector and coil. but they still have engine code

Feb 27, 2009 | 1999 Lincoln Town Car

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