HELLLLLPPPPPP ME LT5 Brothers!!! - ZR-1 Net Registry Forums

C4Fanatic · 10-07-2011

Drove the Z to Eureka Springs, trouble free, hasn't missed a lick. Today on a road tour the car suddenly won't idle down, wants to idle between 1500-2000 rpm. Check everything under the hood we can see, no tools, haven't pulled anything off yet. Throttle cable seems free, I hear the throttle body butterflies clicking shut , so I don't think it's failing to close all the way. Check every vacuum line we can get a hand onto. Try pinching them off to see if any change the idle speed. Nothing...no change.

Just remembered this...car is showing NO SES indication, so apparently no codes.

Tonight I'm walking up to the car from the passenger side and notice something hanging down from the fender area behind the passenger side rear tire and it appears to be trapped between the body work and the tail pipe. Reach down to grab it and find some kind of vacuum canister I believe.

Question...IS this indeed a vacuum canister that is mounted back there? Could it have come out of its mount and dropped resulting in a disconnected vacuum line? And could it possibly be causing my issue?
Any other ideas as to what may be causing my high idle speed?
I'm going to guess that to get at it, I'll have to remove the rear tire and inner fender to see it back there.

I'm headed to the tech section sticky of "Been there, Done that's" but thought I would throw this out to the experts in the mean time.

Thanks for any help in advance guys.

David

10-07-2011	#1
C4Fanatic Join Date: Dec 2010 Location: Sin City Posts: 148	HELLLLLPPPPPP ME LT5 Brothers!!! Drove the Z to Eureka Springs, trouble free, hasn't missed a lick. Today on a road tour the car suddenly won't idle down, wants to idle between 1500-2000 rpm. Check everything under the hood we can see, no tools, haven't pulled anything off yet. Throttle cable seems free, I hear the throttle body butterflies clicking shut , so I don't think it's failing to close all the way. Check every vacuum line we can get a hand onto. Try pinching them off to see if any change the idle speed. Nothing...no change. Just remembered this...car is showing NO SES indication, so apparently no codes. Tonight I'm walking up to the car from the passenger side and notice something hanging down from the fender area behind the passenger side rear tire and it appears to be trapped between the body work and the tail pipe. Reach down to grab it and find some kind of vacuum canister I believe. Question...IS this indeed a vacuum canister that is mounted back there? Could it have come out of its mount and dropped resulting in a disconnected vacuum line? And could it possibly be causing my issue? Any other ideas as to what may be causing my high idle speed? I'm going to guess that to get at it, I'll have to remove the rear tire and inner fender to see it back there. I'm headed to the tech section sticky of "Been there, Done that's" but thought I would throw this out to the experts in the mean time. Thanks for any help in advance guys. David Last edited by C4Fanatic; 10-07-2011 at 10:33 PM.