[Aiden793]

So I have a 2000 Gs-r. It has I/H/E IM and Cam Gears. I know most people would not get cam gears without cams but i got an extremely good deal with a cheap install. I went to a dyno day with some TI guys and ended up having the cam gears tuned a little bit smoothing out the curve slightly and adding a little HP. Well I left my car at home in dallas and have my moms blazer up at school to keep my teg safe from missouri weather. I just found out that my older brother was driving my car when it started acting wierd and the check engine light came on. He described it as the engine slightly revving up and down strangely. This would stop when he turned the car off and restarted. Later it happened again and he took it to the dealer. They pulled the codes and it was a misfire in cylinder 3&4. Their mechanics said that they related the problems back to the cam gears. I was wondering if this sounds right and if so what should i do about it? Set the back to zero? Sorry for the long message but I don't know what to do and am trying to figure out what to do so when i go back next weekend i can fix it. Thanks

 

[solano21]

what type of plugs you running? msd or all stock igntion

 

[solano21]

o yea what code was it if you have the info

 

[itgsr96]

well for basics check your spark plug wires and plugs to see if they the right ones for your car..check your timing on the belt with the timing light.

 

[siggy833]

Well if your timing gears are too far advanced and your bro over-reved it, then its possible you may have some bent valves

. Thats what it sounds like to me...I hope not though.

 

[Aiden793]

I'm running stock plugs which i just recently and they were fine. I talked to him about over-reving and he said he didn't. Plus if they were bent valves wouldn't the strange reving happen constantly? Sorry I don't know the actual codes.

 

[siggy833]

If you have bent valves then you would not necessarily have the strange reving, I know from experience.
Of course your brother is not gonna tell you that he over-reved!

 

[DC2user]

My buddy bent his valves over-revin and he never experienced any unusal reving. Get a lie dector

 

[greaseman]

work in reverse order..reset the gears to zero...but i dont think thats the problem...

then check for spark....using spark tester...

 

[greaseman]

run a compression check on 3&4 and a leakdown would work well too...

 

[eonflux]

updates? im getting the same codes... misfire in cyl 3 and 4