99 sunfire gt 2.4

G

great white whaler

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runs really ruff like it want to jump out of the engine compartment,,i on plug number 2 and number 3 fuel injector and it idles nice and smooth,,plug it back in than the engine rocks like my girl friend.:) HELP ME,,, THKS.
 
have you had it checked for any codes?
 
don't think the car is worth it,,,i had a look under the car somebody removed the cat and welded in a piece of pipe,,i dont under stand unplug number 2 and 3 fuel injector and the motors idles nice but is gutless,plug it back in it all over the place.did a compression test all cylinders is around 130 psi
 
auto parts stores check codes for free
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I would start with the spark plugs first... Then maybe the Ignition Coils.

The P0300 Code was/is a nightmare for me... I finally borrowed a friends OBD II Scanner with LCD display that actually told me Cylinder 3 Misfire so it helped me narrow it down to the Housing itself.
 
I have the exact same problem. everything in the ignition system has been replaced. I'll start replacing fuel injectors next.
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just put new spark plugs ,and changed the o ringers on fuel injectors,,it looks like somebody as already changed the coils,,,,this car as no spark plug wires.I start the car and it idle smooth for like 2 minutes that it starts to misfire,,Is there any way to test the coil pack ? THKS
 
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