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P0940 Engine Trouble Code

P0940 Engine

When you check engine light came on code P0940 the reason should be . However your vehicle's manufacturer may have a different definition for the P0940 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

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.

P0940 Code Meaning :

P 0 9 4 0
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Injector Circuit Malfunction - Cylinders Engine Shutoff Solenoid Malfunction Exhaust Gas Recirculation Sensor B Circuit High

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

P0940 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0940 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For P0940 Code

The reason of P0940 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

Parts or components should not be replaced with reference to only a P0940 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.