Question about Ford Escort
Code po302, po303, po113
Posted by Anonymous on
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Posted on Jan 02, 2017
Hi these are mis-fire codes ,
P0300 is a general mis-fire detected code the others relate to specific cylinders,
P0302 is cylinder 2 misfire
I would check your spark plugs first if Ok you need to make sure the coils are working ok for this you need an osciloscope to check output voltage if your not sure then take to a qualified mechanic with Cadilac experience it could be caused by an air leak,bad ECT sensor or even Mass air flow sensor ,codes only tell you the result not the cause
Posted on Jul 24, 2009
Yes, All the years of the ZX2 utilize the same engine. 1998-2003 are all the same except for ECU programing and the MAF wiring. You should not have a problem.
Posted on Jul 31, 2009
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.
Posted on Oct 10, 2009
SOURCE: 2002 ford windstar
po303 is cylinder 3 misfire, po304 is cylinder 4 misfire, po305 is 5 cylinder misfire. this means it could be bad plugs, wires. or coils that are bad. change plugs and see how it is running.
Posted on May 18, 2010
OBDII those codes generally mean misfire.
P0300 multiple missfire
P0301 missfire cyl 1
P0302 missifre cyl 2
Ensure you have the proper spark plugs. Check the coil boots/wires, look for burn marks. Anything beyond that you may have to take it back to the shop.
You are misfiring on all 4 cylinders and it is not spark plugs. Those misfires if not addressed can cause serious engine and/or cat converter damage. There are lots of things that could be causing it and most of them need to be checked out at a shop - unless you want to invest several thousand dollars in the appropriate equipment and training.
Posted on Dec 21, 2010
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