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RB20DET Popping Noise from exhaust (after 4000rpm)

Hawker180

By Hawker180,
in Engines & Forced Induction

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Hawker180 Proficient

Hawker180

Posted
Posted

Hey, im having a problem with my RB20DET (R32 gtst) When i rev the car to about 4000rpm+ sometimes I get a popping noise from the exhaust. It doesnt seem to loose power but as you can imagine i am off the gas as soon as it happens!

Anyone got any ideas on what it could be? I was thinking faulty coil packs or Sparkplugs!

cobo_11 Rising Star

cobo_11

Posted
Posted

I just read another thread....

Another guy had same problem and faulty coil pack for him.....but also check about fuel richness, could also be a contributing factor.....not sure though....hopefully someone with more knowledge will post soon....:cheers:

Chris32 Veteran

Chris32

Posted
Posted

Check all of the above, plug, coils etc

a mate of mine also had a similar problem, it would only occur now and then, it turned out to be the crank angle sensor had come a little loose at some stage and it had chewed all the gearing of the exhaust cam - result - new exhaust cam and CAS had to go in, and problem fixed

Check to see if the CAS is tight, or even pull it off and have a look at the splined gear inside, if its all chewed up, chances are thats your problem

Chris

Angry Proficient

Angry

Posted
Posted

had exact same problem with mine yesterday...... under load and at about 4000 rpm and REALLY badly at 5000rpm it would be popping and braking down on power delivery..... got it home after blowing smoke and dropping flames..hehe ...... changed the plugs and now she;s good as gold now.

Matt

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