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P0990 Engine Trouble Code

P0990 Engine

When you check engine light came on code P0990 the reason should be . However your vehicle's manufacturer may have a different definition for the P0990 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.

P0990 Code Meaning :

P 0 9 9 0
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Injector Circuit Malfunction - Cylinders Cylinder 4 Contribution/Balance Fault 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.

P0990 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0990 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For P0990 Code

The reason of P0990 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

P0990 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.