P1075 Diagnostic Trouble Code

P1075 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P1075 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code P1075 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P1075.

Fortunately, P1075 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1075 Trouble Code For Specific Cars

P1075 Datsun Sports HO2S Heater Control Circuit High (Bank 1 Sensor 2)
P1075 Land Rover Freelander Steering Phase B Circuit Signal Is Not Sensed
P1075 Alfa Romeo 2900 Acceleration Position Sensor Conflict
P1075 Pininfarina Eta Engine Temperature Light Monitor Failure
P1075 Mazda Demio 2 Transmission Transfer Case Shift Motor Short Circuit To Battery
P1075 Vauxhall 30 Power Window One Touch Up/Down Activated Simultaneously
P1075 Volkswagen Atlas Rear Wiper Select Switch "D" Short to Ground