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Check U1025 Fault Code

When you check engine light came on code U1025 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 U1025 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1025 Code Reason

U1025 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.

U1025 Possible Fix :

If the culprit is a poor fuel pressure regulator, then I suggest looking around for a replacement part and taking your car to your local mechanic for installation. If you're a skilled mechanic, then you should be able to install a new fuel pressure regulator easily. But if you're just starting out, it's always best to have the professionals take care of this job. Believe me, the fuel pressure regulator is not an easy part to install.

U1025 OBD-II Diagnostic Network (U) Trouble Code Description

U1025 SCP (J1850) Invalid or Missing Data for Primary Id so you have to check ODB-II Fault Code Check list.

Reason For U1025 Code

The reason of U1025 OBD-II Fault Code Check is U1025 SCP (J1850) Invalid or Missing Data for Primary Id.

U1025 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 U1025 mean ?
What does a diagnostic reading U1025 mean ?
How to fix OBD2 Code U1025 ?
What do we know about U1025 code ?

How to Clear U1025 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.