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Check P0946 Fault Code

When you check engine light came on code P0946 the reason should be . However your vehicle's manufacturer may have a different definition for the P0946 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0946 Code Reason

P0946 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.

P0946 Possible Fix :

Probably the biggest result of injector failure is due to the injectors having excessive return flow or back leakage. This is due to worn parts which allow excessive fuel to go through the diesel injector and to return back to the tank or fuel system. This causes a drop in rail pressure which results in hard starting or not starting at all.

P0946 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0946 Hydraulic Pump Relay C ircuit Range/Performance so you have to check ODB-II Fault Code Check list.

Reason For P0946 Code

The reason of P0946 OBD-II Fault Code Check is P0946 Hydraulic Pump Relay C ircuit Range/Performance.

P0946 Solution:

Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.

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