1994 Ford Mustang randommisfire

1994 FORD MUSTANG
210,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SAMMMM
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  • 5 POSTS
code showing random misfire and cylinder#2misfire.fuel burning smell. i changed sparkplugs,coil,injector #2. same problem.
Nov 4, 2009 at 5:58 PM
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RASMATAZ
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  • 75,992 POSTS
Check compression on no.2 and also check the items below

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Nov 4, 2009 at 6:10 PM
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SAMMMM
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  • 5 POSTS
i did compration test.150 to 170.i changed plugs,coil.injector#2.putinjector cleaner.fultank fuel.still same problem.
Nov 4, 2009 at 6:15 PM
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RASMATAZ
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  • 75,992 POSTS
Check and test the rest I've mentioned
Nov 4, 2009 at 6:25 PM
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