P0927 Diagnostic Trouble Code

P0927 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 P0927 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 :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code P0927 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 P0927.

Fortunately, P0927 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0927 Trouble Code For Specific Cars

P0927 Lmx Sirex through P0580 Reserved for Cruise Codes
P0927 Monteverdi Sahara Battery Power Supply ECU Circuit Short To Ground
P0927 Dodge Lancer Ignition Key-In Circuit Failure
P0927 Nissan Terrano Ii Cylinder #2 High To Low Side Open
P0927 Nissan Lafesta Cold Start Injector 1 Malfunction
P0927 Db 850 HO2S Heater Control Circuit Low (Bank 1 Sensor 3)
P0927 Bristol Blenheim Crankshaft Position Sensor A Circuit Malfunction