Possible causes – Faulty Front Heated Oxygen Sensor Bank 1 – Front Heated Oxygen Sensor Bank 1 harness is open or shorted – Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection – Inappropriate fuel pressure – Faulty fuel
Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks
Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks
Possible causes – Faulty Mass Air Flow (MAF) Sensor– Vacuum leaks– Throttle system errors Symptoms – Engine Light ON (or Service Engine Soon Warning Light) AUDI Technical Service Bulletins for P1144 code 2002 AUDI A4 ENGINE AND ENGINE COOLING:ENGINE 2002
Possible causes – Faulty Mass Air Flow (MAF) Sensor– Vacuum leaks– Throttle system errors Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Pressure Sensor– Pressure Sensor harness is open or shorted– Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Incorrect fuel pressure– Faulty fuel pressure solenoid– Air in fuel system When is the code detected? The ECM has determined that the fuel rail pressure is too high for a specific condition Symptoms – Engine Light ON
Possible causes – Incorrect fuel pressure– Faulty fuel pressure solenoid– Air in fuel system When is the code detected? The ECM has determined that the fuel rail pressure is too high for a specific condition Symptoms – Engine Light ON
Possible causes – Incorrect fuel pressure– Faulty fuel pressure solenoid– Air in fuel system When is the code detected? The ECM has determined that the fuel rail pressure is too high for a specific condition Symptoms – Engine Light ON
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1144 Description Air Assist Control Valve Circuit Malfunction is one of the definitions for the P1144; however your vehicle’s manufacturer may have a different definition for the P1144 code.
Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Symptoms – Engine Light ON (or Service Engine Soon Warning Light)