86.5 ISV Test
04-23-2014, 11:38 AM
#16
Rennlist Member
ack. I've had a creeping warm idle- definitely not over 1K but noticeable increase from baseline. Assumed it was a heat-exacerbated vacuum leak. Did you have to rebuild the LH, or trash it/replace, or what?
Frustrating, the ISV was an early R&R item to get a sound basline, it's nearly new. And is the S4 unit a drop-in? Don't recall, I might've even gone that route last time.
Frustrating, the ISV was an early R&R item to get a sound basline, it's nearly new. And is the S4 unit a drop-in? Don't recall, I might've even gone that route last time.
Problem came right back after a 10 mile trip during the summer, exact same symptom, let cool down over night and idle was fine again.
Swapped both (LH and EZF) for known good spares (w/stock chips), problem went away and never came back.
I have yet to open up the LH and may have it repaired someday.
Once I had her all squared away and running great stock, I swapped out the two stock ECU's w/ one's that have Ken's latest's chips and
Also: Recently put in a re-built MAF as the AEM-Wideband AFR #'s were not to my liking this spring, cold idle and acceleration were greatly improved!
EDIT: S4 is not a drop in, Intake will need to be removed, I'd try a re-built MAF first
Thanks,
Dave
