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P1389 Engine Trouble Code

Meaning of P1389 engine trouble code is : 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.

P1389 Possible Solution:

P1389 Engine

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

P1389 Code Meaning :

P 1 3 8 9
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Throttle/Pedal Position Sensor/Switch A Circuit Intermittent Ignition/Distributor Engine Speed Input Circuit Malfunction Reverse Input Circuit

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

P1389 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1389 OBD-II Trouble Code Glow Plug Circuit High Side Low Input is one of the definitions for the P1389; however your vehicles manufacturer may have a different definition for the P1389 code. Please check below for your specif P1389 code.

Reason For P1389 Code

The reason of P1389 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.

P1389 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.