Check C1946 Fault Code
When you check engine light came on code C1946 the reason should be . However your vehicle's manufacturer may have a different definition for the C1946 OBD-II Diagnostic Chassis (C) Trouble Code. So you should chech it on our car models.
C1946 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.
C1946 Possible Fix :
Detonation, or spark knock, is a type of combustion caused by the buildup of too much heat and pressure in the engine's combustion chamber. When this happens, you should be able to hear a metallic knocking or pinging noise. A small amount of detonation usually won't cause major damage, but heavy knocks or prolonged detonation can cause serious damage to your parts. It can punch holes in your pistons, crush rod bearings, blow head gaskets, crack rings, and pound out piston ring grooves. Prolonged pinging noises are a definite cause for concern.
C1946 OBD-II Diagnostic Chassis (C) Trouble Code DescriptionC1946 Seat Track Position Switch Circuit Open so you have to check ODB-II Fault Code Check list.
Reason For C1946 CodeThe reason of C1946 OBD-II Fault Code Check is C1946 Seat Track Position Switch Circuit Open.
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.
What does fault code C1946 mean ?
How to Clear C1946 Trouble Code
An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.