C281E Diagnostic Trouble Code

C281E is a kind of OBD-II Diagnostic C-Chassis 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 C281E diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
Diminished fuel efficiency

Possible Causes :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

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 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.

Process Tips

Diagnostic trouble code C281E 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 C281E.

Fortunately, C281E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C281E Trouble Code For Specific Cars

C281E Daihatsu Copen Gear Shift Module Communication Circuit High
C281E Volvo 244 SCP (J1850) Invalid or Missing Data for Digital Signal Processing
C281E Infiniti Qx56 SCP (J1850) Invalid or Missing Data for Fuel System
C281E Bmw 2 Camshaft Position Sensor Circuit High Input
C281E Bizzarrini Bz-2001 Brake Switch Circuit Failure
C281E Daewoo Lacetti Gate Select Actuator Circuit Range/Performance
C281E Shanghai Sedan Insufficient Engine Speed Increase During Self Test