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Po306

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Ok I just don't see why a bad one would only hurt 2 cylinders but ill give it a shot. I'm just running out of ideas and I'm hoping my pistons aren't shot.
 
I hope this thing is driving me nuts. If its not the icm what else would you guess? Valve springs? Or valves? It couldn't be my icm ground is weak could it?
 
Alright i put another icm in and i have the same problem. I also had a po135 come up im pretty sure that its because my o2 is unplugged I've noticed when rev the car the problem goes away. Does anyone have any other ideas im lost and tempted to just sell it and i really dont want to but i cant keep dumping money into something that i dont know whats wrong. Please help cause i really want to keep it i havent got to experience the top swap with a pulley drop lol
 


make your own extension, if you can solder wires, you can extend your stock harness to reach.

search you tube, its really to easy.
 


01GrandPrixTURBOGT said:
Well it read 60 once but now it won't read anything but the rest ready about 160 170
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01GrandPrixTURBOGT said:
Well I haven't got the chance to pull the valve cover yet but I did a wet compression test and it shot up to 140 and on dry it went to 60 but then would drop.
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Have you checked it since you repaired the rocker arm? Also talk to ZZP and maybe you can get a replacement PCM to install. It MIGHT be the tune...
 
Ok I'm going to get the o2 hooked up and get a video. What should I do in the video? Pull one plug at a time so you can see the spark? And could the tune just wack out after driving fine for a day?
 
Ok I'm going to get the o2 hooked up and get a video. What should I do in the video? Pull one plug at a time so you can see the spark? And could te tune just wack out after driving fine for a day? Also when I plug it in does it matter if I'm running open heades? Haven't got it welded since I haven't had the car running good.
 


Ok I took my 12v noid light and tested the fuel injectors while car was running and they didn't flash. So does that mean my pcm is no good.
 
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im told you can use the side marker bulb in the head light, and stick it into the injector plug.

i used a 2 dollar test light, worked just fine as well.
 
iirc it should flash when you first turn the key to run, that primes the engine, then it wont flash again till it fires up. or something like that.

i have no idea what this 12 volt mood light is, if it has a cord that maybe the problem.

one side of the plug is power the other is ground, so if you ground off your test light to the battery, then prob the plug so see which side make it light up of flash.

you can also pull the injector plug while its running and test it. may throw a cel but that can be cleared easy enough.
 
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