Idle to high around 2000rpms - ZR-1 Net Registry Forums

We Gone · 12-05-2015

So I need some advice from the experts. I have a good friend here in Ga. who has a 91 P&P headers exhaust and tune If i had to guess 500 flywheel HP.

He can not get the idle down below 2000, This just started after the car sat for an extended time. I went over and helped check out the normal things such as vacuum or vacuum leaks none found. I hooked up my scanner and what I did find was a code 62, and the 02's never cross counted the stayed around 750-800 both right and left just a flat line??

He does run a % of race gas in it could that have burned up the 02's?
Will the 02's create this high idle issue?

Thanks Guys any help will be great.

12-05-2015	#1
We Gone Join Date: Apr 2004 Location: ATL. GA. Posts: 2,170	Idle to high around 2000rpms So I need some advice from the experts. I have a good friend here in Ga. who has a 91 P&P headers exhaust and tune If i had to guess 500 flywheel HP. He can not get the idle down below 2000, This just started after the car sat for an extended time. I went over and helped check out the normal things such as vacuum or vacuum leaks none found. I hooked up my scanner and what I did find was a code 62, and the 02's never cross counted the stayed around 750-800 both right and left just a flat line?? He does run a % of race gas in it could that have burned up the 02's? Will the 02's create this high idle issue? Thanks Guys any help will be great. __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold