ZR-1 Net Registry Forums - View Single Post - Running well BUT....Idles at 2000rpm sometimes!

Paul Workman · 03-02-2009

It has the ear marks of a "vacuum" (air) leak. In my case it was the intake and IH that needed to be re-torqued. Some of the bolts were barley finger tight. Also, on my 90 there was a vacuum line running to the TB on the underside. It discovered that it was left disconnected when I bought it. That caused me some erratic idle once as well.

Others will chime in too.

P.

03-02-2009	#2
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Running well BUT....Idles at 2000rpm sometimes! It has the ear marks of a "vacuum" (air) leak. In my case it was the intake and IH that needed to be re-torqued. Some of the bolts were barley finger tight. Also, on my 90 there was a vacuum line running to the TB on the underside. It discovered that it was left disconnected when I bought it. That caused me some erratic idle once as well. Others will chime in too. P.