I have some problems with my Z. I ran the diagnostic and got error 34 and 51. I found the faulty injector for the 51 code and have ordered a new one. I don't know if it will solve the idle problem or not. The car will idle find if the car is warmed up and driven.
Onto the bigger problem. So I have this weird noise coming from the back of the plenum. It is more of a "clacking" noise. It isn't there at idle but when you hit 2.5k rpm's it starts clacking and clacks all the way to 3.5k rpm's. Is the detonation sensor causing this problem? I think the car might be on safety boost but I can't tell with the stock boost gauge.
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Rough Idle, Clacking Noise, and error 34 - buckethead15123:49:27 02/18/11