1995 Mitsubishi Eclipse 3 And 4 Cylinder Arent Firing Could This Ive Already

1995 MITSUBISHI ECLIPSE
195,500 MILES
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DRIFTKILLER101
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my 3&4 cylinder arent firing why could this be ive already replaced the coil pack, spark plugs, spark plug wires, fuel pump, i just seem to cant figure out what could be causeing this
Nov 12, 2012 at 8:56 PM
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KHLOW2008
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Check the engine compression.
Check for vacuum leakages.
Do you have coolant losses and overheating issues?
Nov 13, 2012 at 3:30 PM
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DRIFTKILLER101
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  • 82 POSTS
all good except it has a low compression on the 4th cylinder, i was guessin that the injectors are clogged or just the ecu isnt telling them to spray
Nov 16, 2012 at 12:12 AM
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KHLOW2008
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Low compression can result in misfiring. How much lower than others?

Guessing can be a waste of time and money. Test them to confirm. Try swapping the injectors.

Nov 16, 2012 at 11:30 AM
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