ZR-1 Net Registry Forums - View Single Post

mike100 · 08-31-2011

well, it looks like to me the rubber PCV elbow is circled. Those things can fit the pcv valves kind of loosely and leak all kind of extra air to the throttle body (high idle).

the high idle could also be a hose popped off under the plenum (somewhat common). Will it idle below 1200 rpms when it is warmed up?

btw, the LT5 start-up does rev a little high even when all is well. should idle down to 800 rpms within a short period of time.

08-31-2011	#3
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,786	Re: part identification well, it looks like to me the rubber PCV elbow is circled. Those things can fit the pcv valves kind of loosely and leak all kind of extra air to the throttle body (high idle). the high idle could also be a hose popped off under the plenum (somewhat common). Will it idle below 1200 rpms when it is warmed up? btw, the LT5 start-up does rev a little high even when all is well. should idle down to 800 rpms within a short period of time.