yes i was wondering how you can tell if your misfireing or detonating when using nitrous? I have Nx EFI system, 4-2--1 header, full exhaust, intake, Nkg tr6's.

I havn't shot the nitrous yet but i did just put the new plugs in...

I was just wondering cause when i turn my car off it makes a weird noise? The car seems to run fine while driving. Its never made the noise till now...

Any suggestions?





2004 Turbo cavalier 11PSI and blown!

actually it never made that noise until i hooded the nitrous relay up? Could it be the relay making the noise? Cause after i put the plugs in, which was before the relay and wiring ect... i started the car to see if it ran fine. It seem to. But now sincei have the relay hooked up and whatnot, it makes that noise when i shut the car off.





2004 Turbo cavalier 11PSI and blown!

if you havent sprayed... i dont see how you could be running lean. detonation sounds like a banging/pinging. you wouldn't get it at shutoff. what does the noise sound like?