i have been doing some workto my car lately. I put a new header on and i will be bolting up a test pipe. I also got a j's style intake and a 255 fuel pump. Today i got the j's intake in today and when i put it on and started her up the idle was high aroung 1300. there was no plug for the intake temp sensor. Would that cause the idle to be high??? or could the new fuel pump have done it??? or could it be my seconday 02 sensor is not pluge up to the test pipe since my car is open header right now??? anyone have any idea??? TIA!

 

take off your intake and check your throttle body to see if it's stuck at high idle because of some obstruction, in my case a small piece of cloth got sucked into the TB... Probably not the case but an IDEA nonetheless...