IDLE / THROTTLE ISSUE - ZR-1 Net Registry Forums

GOFAST · 04-25-2012

I have a '95 with 4800 miles. It runs great but I have an idle / throttle issue. At start-up the engine idles normally at 700 RPM. Once the engine is at operating temperature, it idles at 1100 RPM. However, I can bring the idle back to 700 RPM by agressively "tapping" the accelerator pedal. The engine idle returns to 1100 RPM after normal driving. Also, if the engine is shutdown and restarted, the idle always returns to normal (700 RPM). I have cleaned and lubed the throttle blades but have not removed and rebuilt the throttle body. I'm also wondering if the throttle linkage may be sticking and causing the issue.

Any ideas?

04-25-2012	#1
GOFAST Join Date: Dec 2011 Location: Minnesota Posts: 31	IDLE / THROTTLE ISSUE I have a '95 with 4800 miles. It runs great but I have an idle / throttle issue. At start-up the engine idles normally at 700 RPM. Once the engine is at operating temperature, it idles at 1100 RPM. However, I can bring the idle back to 700 RPM by agressively "tapping" the accelerator pedal. The engine idle returns to 1100 RPM after normal driving. Also, if the engine is shutdown and restarted, the idle always returns to normal (700 RPM). I have cleaned and lubed the throttle blades but have not removed and rebuilt the throttle body. I'm also wondering if the throttle linkage may be sticking and causing the issue. Any ideas?