P1239 Engine Trouble Code

Meaning of P1239 engine trouble code is a kind of powertrain trouble code and 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.

P1239 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for P1239 code is occuring now you should check P1239 repair processes.
Now don't ask yourself; What should you do with P1239 code ?
The solution is here :

P1239 Possible Solution:

P1239 Engine

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

P1239 Code Meaning :

P 1 2 3 9
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Manifold Absolute Pressure/Barometric Pressure Circuit High Input Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) Reverse Input Circuit

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

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.

Main reason For P1239 Code

The reason of P1239 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

Parts or components should not be replaced with reference to only a P1239 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.