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C0974 Engine Trouble Code

Meaning of C0974 engine trouble code is : Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

C0974 Possible Solution:

C0974 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.

C0974 Code Meaning :

C 0 9 7 4
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Injector Circuit Malfunction - Cylinders Cylinder 10 Contribution/balance Fault Timing Reference High Resolution Signal A Too Many Pulses

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

C0974 OBD-II Diagnostic Chassis (C) Trouble Code Description

C0974 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Reason For C0974 Code

The reason of C0974 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

C0974 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.