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Proton Suprima S P1143 Engine Error Code

When you check Proton Suprima S car engine light came on code P1143 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Proton 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 Proton Suprima S Code Clear

P1143 Proton Suprima S engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)

P1143 Code Reason

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

Proton Suprima S car 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 Proton Suprima S P1143 Code

The reason of Proton Suprima S P1143 OBD-II Engine Error Code is P1143 Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1.

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P1143 Proton Suprima S code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

Proton Suprima S P1143 Possible 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.

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