Hi All;
Example:
Ecu know AFR from o2 sensor
Ecu know knock from knock sensor etc..
ECU Which sensor does it use for misfire ? How does it know?
Car: 2009 Opel GT Rodster (Saturn SKY Redline 2.0 LNF)
Printable View
Hi All;
Example:
Ecu know AFR from o2 sensor
Ecu know knock from knock sensor etc..
ECU Which sensor does it use for misfire ? How does it know?
Car: 2009 Opel GT Rodster (Saturn SKY Redline 2.0 LNF)
Crankshaft sensor - RPM
ECM compares speed of crankshaft from one cylinder firing to the next. If cylinder misses, crankshaft slows down. Then it identifies which cylinder misfired.