Post by
texasoil »
https://forums.nicoclub.com/texasoil-u1000.html
Mon Nov 12, 2007 6:18 am
probably a weak fuel injector about to fail OR borderline bad electrical connection about to go completely. Even a small amount of crud on the intake valves will funk up the idle--ESPECIALLY with a weak fuel spray from an injector. Symptom is: Runs fine just off idle, seems to miss at idle--Idle speed controller opens a bit to maintain idle speed--increasing fuel flow a smidgen-miss stops, idle speed increases, idle speed controller closes to drop speed-miss returns-repeat repeat, somtimes with significant surging ad IAC cannot manage the rapid changes.