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Check P0628 Fault Code

When you check engine light came on code P0628 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0628 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0628 Code Reason

P0628 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.

P0628 Possible Fix :

The most likely cause of this is that there is no refrigerant left in your system. This could be caused by a leak in your system somewhere, which will have to be fixed before refilling the refrigerant. If you're car-savvy and you own a set of air conditioning gauges, refilling the refrigerant is usually easy to do yourself. However, if you're not so confident, enlist the help of a knowledgeable friend or take a quick trip to the mechanic.

P0628 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0628 OBD-II Trouble Code When the ignition switch is turned ON the Engine Control Module (

Reason For P0628 Code

The reason of P0628 OBD-II Fault Code Check is P0628 Fuel Pump A Control Circuit Low.

P0628 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.

What does fault code P0628 mean ?
What does a diagnostic reading P0628 mean ?
How to fix OBD2 Code P0628 ?
What do we know about P0628 code ?

How to Clear P0628 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.