P1980 Diagnostic Trouble Code

P1980 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 P1980 diagnostic trouble code may include:

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

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)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

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. 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 P1980 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 P1980.

Fortunately, P1980 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1980 Trouble Code For Specific Cars

P1980 Alvis Silver Air Bypass Valve Circuit Malfunction
P1980 Rolls-royce Silver Cloud IAC Monitor Disabled by PSP Switch Failed On
P1980 Mercedes E 200 ABS Power Relay Coil Circuit Failure
P1980 Vanden Plas Princess Power Window Master Circuit Short To Battery
P1980 Packard Twin Driver Door Handle Circuit Short To Ground
P1980 Volkswagen 181 Rear Echo Sensor Circuit Failure
P1980 Ford Fairmont