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Canister solenoid valve circuit is short-circuited to low voltage/open circuit
1 cylinder front oxygen sensor heating circuit current is too small (heater performance
failure)
2 cylinder front oxygen sensor heating circuit current is too small (heater performance
failure)
Oil pump relay is shorted to high voltage
Oil pump relay shorted to low voltage/open circuit
Oxygen lean to rich before 1 cylinder response too slow
Oxygen is rich to lean before 1 cylinder, the response is too slow
Oxygen lean to rich in front of the 2 cylinder response is too slow
The response is too slow before the 2 cylinder oxygen is rich to lean
ECM read-only memory check error
1 cylinder injector shorted to high voltage
1 cylinder injector shorted to low voltage/open circuit
2 cylinder injector shorted to high voltage
2 cylinder injector shorted to low voltage/open circuit
Inlet pressure is too low at steady state
High voltage of intake pressure sensor circuit
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