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Check U1126 Fault Code

When you check engine light came on code U1126 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 U1126 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1126 Code Reason

Parts or components should not be replaced with reference to only a U1126 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

U1126 Possible Fix :

Check your choke plate. Is it positioned correctly? Is it still working as it should? Does it open completely? If not, then you either replace it or repair it. If the damage is quite severe, I suggest you put down your repair tools and start looking around for a replacement choke plate to avoid a repeat of this nasty episode.

U1126 OBD-II Diagnostic Network (U) Trouble Code Description

U1126 SCP (J1850) Invalid or Missing Data for Primary Id so you have to check ODB-II Fault Code Check list.

Reason For U1126 Code

The reason of U1126 OBD-II Fault Code Check is U1126 SCP (J1850) Invalid or Missing Data for Primary Id.

U1126 Solution:

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

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