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Definition of check engine code P1127:
Citroen/Peugeot:
Exhaust Not Warm, Downstream O2 Sensor
Daewoo:
CTRL SLEEVE POS SNSR MAL
Ford:
Exhaust Not Warm, Downstream O2 Sensor
Hyundai:
Long Term Fuel Trim Multiplier Too Rich
Jaguar:
Exhaust not warm enough, downstream oxygen sensors not tested
Lamborghini:
Long term fuel trim multiplicative air system low
Lexus:
ECTS Actuator Power Source Circuit Malfunction
Lincoln:
Exhaust Not Warm Enough - Downstream O2 Sensor Not Tested
Mazda:
HO2S Bank 1 Sensor 2 Heater Not On During Key On Engine Running Self Test
Mercedes:
H02S - 12 heater not ON during KOER self test
Mercury:
Exhaust Not Warm Enough - Downstream O2 Sensor Not Tested
Oldsmobile:
Exhaust Not Warm Enough - Downstream O2 Sensor Not Tested
Porsche:
Oxygen Sensing
Saab:
Multiplicative Adaptation, Bank 1 Min. Value
Scion:
ETCS Actuator Power Source Circuit.
Toyota:
ETCS Actuator Power Source Circuit Malfunction
Volkswagen/Audi:
Long Term Fuel Trim mult.,Bank1 System too Rich
Volvo:
Long Term Fuel Trim mult.,Bank1 System too Rich
GM:
Open Loop CO Adjust Circuit
