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Cant Rev Over 3K Rpm

bigpapi79

By bigpapi79,
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bigpapi79 Newbie

bigpapi79

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Hello all,

New to this forum and I have searched and found similar problems but the fixes didnt seem to work. 1990 R32, set of cams and exhaust and splitfires. The car ran fine and now all of a sudden it wont rev past 3k rpms, spits out black smoke and runs pig rich. We have switched out the maf's with known working ones and the same problems persisted. Switched out the split fires and plugs with known working ones and new plugs but still got the same problems. Cleaned out the cat, found a chunk of wood in there (dont ask I have no idea) and the car still has the same problems. I dont have allot of experience with rb problems so i thought i would chime in to the experts to see if maybe im over looking some things or if there is a different area i should be interested. If any more info is needed just let me know. Thanks in advance.

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bigpapi79 Newbie

bigpapi79

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possible cam belt slippage?

didnt see any of that either. when i say she runs rich, there is pig rich and then there is what she is doing. smells like you just dumped gas from the pump. smoke could be from kerosene soaked turbos but thats been a while back that should have stopped by now.

Dre678 Explorer

Dre678

Posted
Posted

Hello all,

New to this forum and I have searched and found similar problems but the fixes didnt seem to work. 1990 R32, set of cams and exhaust and splitfires. The car ran fine and now all of a sudden it wont rev past 3k rpms, spits out black smoke and runs pig rich. We have switched out the maf's with known working ones and the same problems persisted. Switched out the split fires and plugs with known working ones and new plugs but still got the same problems. Cleaned out the cat, found a chunk of wood in there (dont ask I have no idea) and the car still has the same problems. I dont have allot of experience with rb problems so i thought i would chime in to the experts to see if maybe im over looking some things or if there is a different area i should be interested. If any more info is needed just let me know. Thanks in advance.

I'm currently encountering a similar problem on my R33.

Check out this tut. I'll be trying it tomorrow.

http://www.skylinesaustralia.com/forums/topic/113284-fixing-your-rb26-afms/

Also worth rebooting the ECU after you're done.

bigpapi79 Newbie

bigpapi79

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I'm currently encountering a similar problem on my R33.

Check out this tut. I'll be trying it tomorrow.

http://www.skylinesa...your-rb26-afms/

Also worth rebooting the ECU after you're done.

We replace both of them with known working ones off of another 32 that was running 5min's prior to swapping them out.

henry R Apprentice

henry R

Posted
Posted

I had similar problem in my 32 gtst, wouldn't rev over 3500rpm. Turns out my fuel tank had rust in it changed pump n tank to gtr one and fixed the problem. So check your fuel tank incase it has rust or gunk in it.

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