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P1239 Engine Trouble Code

P1239 Engine

When you check engine light came on code P1239 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 P1239 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1239 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

P1239 Code Meaning :

P 1 2 3 9
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Ambient Air Temperature Sensor Circuit Low Cold Start Injector 1 Malfunction Ignition Coil A Primary/Secondary Circuit Malfunction

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

P1239 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1239 OBD-II Trouble Code Speed Fuel Pump Positive Feed Fault is one of the definitions for the P1239; however your vehicles manufacturer may have a different definition for the P1239 code. Please check below for your specific P1239 code.

Reason For P1239 Code

The reason of P1239 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

P1239 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.