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Check P1143 Fault Code

When you check engine light came on code P1143 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 P1143 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1143 Code Reason

Parts or components should not be replaced with reference to only a P1143 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

P1143 Possible Fix :

Generally, coolant loss is the most common cause of overheating. If your engine overheats repeatedly, the high temperature could result in irreparable damage that can be a pain to repair. Prevention is the best medicine, so avoid this kind of damage by making sure the coolant is clean and the cooling system is in good operating condition.

P1143 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1143 OBD-II Trouble Code Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 is one of the definitions for the P1143; however your vehicles manufacturer may have a different definition for the P1143 code. Please check below f

Reason For P1143 Code

The reason of P1143 OBD-II Fault Code Check is P1143 Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1.

P1143 Solution:

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

What does fault code P1143 mean ?
What does a diagnostic reading P1143 mean ?
How to fix OBD2 Code P1143 ?
What do we know about P1143 code ?

How to Clear P1143 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.