Pretty sure I got a mis-fire

[5speedz34]

Car has new plugs and wires. Original 200k coils/ICM. Car has new starter and battery, doesn't like cranking very much, but still starts.

Idles rough but doesn't fluctuate at all. Once it warms up the roughness in the engine tones down some. I haven't driven a 3.4 car in a few years and my buddy says it doesn't have some of its mid-range power. Car accelerates fine shifts fine, etc. I can feel a vibration (almost like a bad tire/out of balance tire) while moving at speed. Once the torque converter locks up the car shudders and definitely labors itself. I'm thinking I've got a slight miss or a bad coil. I'm changing the whole coilpack and ICM. Ohh and I got like 180 miles to the last tank.

What do you guys think? I'm definitely leaning towards bad coils and ICM, but I'm kinda want to be certain.

Ohh and my oil has gone from clear to a golden brown in 200 miles. Could it be fuel mixing with the oil?

[gpse3400]

bad injector. Check fuel pressure and ohm them out.

[5speedz34]

bad injector. Check fuel pressure and ohm them out.

UGH. I don't want to pull the plenum......

You don't think its the ICM?

[gpse3400]

oh yeah I didnt see you said he has the original DIS. Umm... could be either or considering you are seeing fuel in the oil...I'd start pulling ign wires till you find the bad cylinder, then diag that cylinder.

[Acid_Burn]

Well I cant help you with this missfire or what ever it is. But if you think there is gas mixing with your oil Id smell you oil. So pull the dipstick and smell it if it smells gassy Id bet that your injectors are goind bad like blowen open or what not.

[series8217]

You can at least check the resistance on the front 3 injectors without pulling the intake plenum.

[5speedz34]

Replaced the coilpacks and the ICM that seemed to take care of the problem.

I still want to test the injectors once it gets warmer out.