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P1398 Engine Trouble Code

Meaning of P1398 engine trouble code is : P1398 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.

P1398 Possible Solution:

P1398 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.

P1398 Code Meaning :

P 1 3 9 8
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 Clutch Position Sensor Circuit Malfunction

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.

P1398 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1398 OBD-II Trouble Code VVT Solenoid B Circuit High Input is one of the definitions for the P1398; however your vehicles manufacturer may have a different definition for the P1398 code. Please check below for your specific m P1398 code.

Reason For P1398 Code

The reason of P1398 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 P1398 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.