Help Please???

[cjackson3396]

All right I'm new to the gtp and S/C area so bare with me ok. I picked up 99 gtp with decent mods..We had to throw the engine in ourselves. We are getting the multiple random misfire code.. We have new plugs wires and the coil checks out... the plugs are soaked...and i mean there is a pool in some cylnders. I'm at a lose except for one more idea...the previous owner I noticed painted the engine while it was out...kinda noticed he didnt take the injectors out when he did...would this mess them all up.. This my first car newer than 79 that I am getting into so if you need anymore info I will do my best...the injectors are stock...it has a 3.4 S/C pulley...he put in the zzp VS Cam...no cat or nething and performance exhaust...the computer was tuned before the mods listed so it is not setup for the cam. I am going to have the PCm tuned for all the mods and I'm going with bigger injectors.

 

[Mike Kopstain]

If there's a puddle of fuel in the cylinders you're running pig rich. Are you sure there are stock injectors in there? Larger injectors with no tune would result in this problem.

The easiest thing to do is to get a scanner on there and check to see what MAF reading is. It sounds like you're flooding the engine.

 

[cjackson3396]

Yea they are the stock injectors...it's a tuned pcm from zzp... Its only the back 3 cylinders...we switched the injectors with the front and the problem stayed where it was at. there is abcolutely nohing happening in these cylinders...the plugs look new still but soaked to hell. I was told to try a compression test but i would think even with no compression with the S/C there would still be something happening in the cylinders. . Plz help me out Any info would be greatly appreciated....and the only code that shows is the Randome multiple misfire code.