P237E Diagnostic Trouble Code

P237E 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 P237E diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Dirty air cleaner element Damaged DPF

Repair Processes :

Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. 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. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code P237E 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 P237E.

Fortunately, P237E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P237E Trouble Code For Specific Cars

P237E Vector W PRNDL Switch Circuit Failure
P237E Subaru M80 LF CORNER LAMP OUTPUT Ckt Short to Battery
P237E Maserati Gt Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
P237E Saab Sonett Ignition/Distributor Engine Speed Input Circuit Intermittent
P237E Treser Roadster Passenger Side Crash Sensor Communication Fault (Non SCP)
P237E Alfa Romeo 4c Accelerometer Front Circuit Failure
P237E Oldsmobile Toronado Damper Low Side Rear Circuit Failure