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Daihatsu Taft P1391 Engine Trouble Code

Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

Daihatsu Taft P1391 Code Meaning :

P 1 3 9 1
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Throttle/Pedal Position Sensor/Switch A Circuit Intermittent Crankshaft Position Sensor A Circuit Malfunction Crankshaft Position Sensor A Circuit Low Input
Daihatsu Taft Engine

When you check Daihatsu Taft car engine light came on code P1391 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However manufacturer may have a different definition for the P1391 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1391 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 P1391 code is occuring now you should check P1391 repair processes.
Now don't ask yourself; What should you do with P1391 code ?
The solution is here :

Daihatsu Taft P1391 Possible Solution :

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.

P1391 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1391 OBD-II Trouble Code Glow Plug Circuit Low Input Bank 1 is one of the definitions for the P1391; however your vehicles manufacturer may have a different definition for the P1391 code. Please check below for your specific P1391 code.

Reason For P1391 Code

The reason of P1391 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.

Parts or components should not be replaced with reference to only a P1391 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.