Front Oxygen Sensor EJ207 Twinscroll
This sensor measures the oxygen content in the exhaust system pre catalyst. An oxygen sensor (or AF sensor) can establish the air-fuel ratio by measuring the excess oxygen left over from the combustion process. The front air-fuel (AF) sensor is used by the ECU for fuel calculations during closed loop fueling.
A faulty sensor can result in poor engine operation or stalling and may set a CEL.
Manufacturer Part Nos.: 22641AA500 (MY08-14), 22641AA191 (MY03-07)
What it fits:
- STI EJ207 MY03-14
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Front Oxygen Sensor EJ207 Twinscroll
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