P1A65 Diagnostic Trouble Code

P1A65 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 P1A65 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code P1A65 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 P1A65.

Fortunately, P1A65 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1A65 Trouble Code For Specific Cars

P1A65 Isuzu Kb250
P1A65 Triumph Vitesse Pedal Demand Sensor B Circuit High Input
P1A65 Unicar Model T Power To Fan Circuit Overcurrent
P1A65 Faralli & Mazzanti Antas Injector Circuit Open / Shorted - Cylinder #1
P1A65 Healey Westland Passengers Seat Belt Buckle Switch Circuit Short to Ground
P1A65 Suzuki Aerio Memory #1 output Short to VBatt
P1A65 Opel Frontera Dim Panel Decrease Input Circuit Short To Ground