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- Fri Aug 16, 2019 10:25 pm
- Forum: 996 Carrera (Naturally Aspirated / Non-Mezger)
- Topic: What device decides a cylinder is miss firing...
- Replies: 39
- Views: 11897
Re: What device decides a cylinder is miss firing...
The crankshaft position sensor is the main indicator of a mechanical miss fire [loss of compression,etc] .It picks it up when the crankshaft slows down due to the miss fire .This is how it can indicate the cylinder thats miss firing also. For elect miss fires the ECM reads exhaust sensors,fuel trim,...