Replaced MAF , ETM (one year ago), plugs new 6 mos., NO CODES ECM , NO LIGHTS EXCEPT when rough idle occurs the "winter" arrow flickers momentarily, then real low rpm , then shut down of engine . restart helps conditions ,but only for a little while and then trouble back again . It sounds and acts just like "fuel delivery", "vapor lock" or inadequate fuel problem since there are no codes from ECM. Volvo performed scan and found absolutely nothing wrong with ECM , ETM !! MAYBE FUEL SYSTEM RELATED !!
|