Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Volvo >> 2012 >> S60 T-6 R-Design >> Repair and Diagnosis >> General Information >> OEM General Information >> Administration >> Design And Function >> Misfire Diagnostics >> Misfire Affecting Emission Levels

Misfire Affecting Emission Levels

If the Engine control module (ECM) detects a certain number of misfires during 1, 000 engine rpms this is interpreted as misfires that affect emissions. Trouble code is stored and MIL-light is activated. Immediately in connection with engine start, that is, during the engine's first 1, 000 revs after start, the misfire diagnosis is four times as sensitive as later on in the driving cycle.

scientia non olet · About Mike's Workshop Manuals