C1208 Diagnostic Trouble Code

C1208 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 C1208 diagnostic trouble code may include:

Faulty or damaged wiring
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Poor fuel economy
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 vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly 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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code C1208 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 C1208.

Fortunately, C1208 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1208 Trouble Code For Specific Cars

C1208 Csc Mark Iii Fuel Temperature Sensor #1 Circuit Failure
C1208 Infiniti I30
C1208 Chrysler Le Baron Evaporative Emission Control System Pressure Sensor Malfunction
C1208 Citroen Jumpy Iii Fuel Pump Control Out Of Range
C1208 Bentley Turbo Blower Control Circuit Failure
C1208 Ford St Mirror Passenger Up Circuit Open
C1208 Marcos 3-litre Transfer Case Contact Plate "C" Encoder Circuit Failure