Help With RPMS

[essial]

Originally Posted by cre

Check for codes FIRST... Then clear any codes, run the car until it reaches normal operating temp and the fault occurs again and check again for persistent codes. Details on how to check them and what they mean is in a thread in the MKIII FAQ section.

Do not continue to bounce the engine off the rev limiter! You're setting yourself up for nothing but significant damage with this bizarre diagnostic technique.

Yeah hitting redline in 1st I'm assuming he just means it goes all the way up no problem, I think from 2nd on the system chugs at 3k rpm and doesn't go higher.

[cre]

Originally Posted by essial

Yeah hitting redline in 1st I'm assuming he just means it goes all the way up no problem, I think from 2nd on the system chugs at 3k rpm and doesn't go higher.

Trust me... never assume the best when it comes to DIY mechanics... Often they'll blow your mind with what they believe is a good/safe/reliable idea. Like wetting your hands in gasoline and rubbing down intake hoses and vacuum line with them.... seen it.

AFM or an intake leak is possible, so is faulty knock sensor(s) or know sensor wiring or CPS problems. A lot of possibilities though.