IAC? or Vacuum? Weird idle. Advice please.

Audessy · Post by **Audessy** » September 13th, 2007, 10:36 pm

I just got my KLZE fired up. Sounds lovely for a little while. It often ends up going to between 3 and 4k rpm for a while and backs down to 1 or 2k. If I press on the gas most of the time the engine dies until I let off. What does this sound like to you guys?

Vanished · Post by **Vanished** » September 14th, 2007, 12:35 am

Check and set the TPS
Check and set the IDLE
Check vacuum leaks
Check IAC

Audessy · Post by **Audessy** » September 14th, 2007, 12:47 am

What I thought too. But which one of the things you mentioned would cause the engine to die when you give it some throttle. I want to solve that first.

mx34u2nv · Post by **mx34u2nv** » September 14th, 2007, 1:33 pm

id check ur maf to make sure its not lose or anything... another would be tps .. mine did that for a while and i swithced tps with the one from my k8 tb and it worked fine....

mx3autozam · Post by **mx3autozam** » September 14th, 2007, 6:50 pm

It ahs nothing to do with IAC or idle adjustment.

Check that the VAF make sure its tight and also make sure there are no leaks between the vaf and the throtle body. thats known as unmetered air entering the engine and will really screw up your air fuel mixture, and cause this problem. and TPS could be another thing to checkl.

Audessy · Post by **Audessy** » September 16th, 2007, 4:13 am

I just put on the old k8 throttle body and voila! Perfect running klze. Minor vacuum issues. Man you guys are right about klze's power. This car is a rocket now. First car I've ever driven that can break the tires loose without dropping the clutch.

mx3autozam · Post by **mx3autozam** » September 16th, 2007, 8:16 am

Audessy wrote:I just put on the old k8 throttle body and voila! Perfect running klze. Minor vacuum issues. Man you guys are right about klze's power. This car is a rocket now. First car I've ever driven that can break the tires loose without dropping the clutch.

ya because the k8 throtle body probly has tps set on it or something. It will work on the ze but the bore is 55mm instead of 60mm. Get it running with the klze one and it will break them tire loose even more. OR even better get one bored to 65 or 67mm.