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DF138 Engine Trouble Code

Meaning of DF138 engine trouble code is : When your car's 'DF138 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

DF138 Possible Solution:

DF138 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

DF138 Code Meaning :

D f 1 3 8
For Engine Fuel Rail/System Pressure - Too High Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) Clutch Position Sensor Circuit Malfunction

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

DF138 Description

DF138 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Reason For DF138 Code

The reason of DF138 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

DF138 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.