P1254 Engine Trouble Code
Meaning of P1254 engine trouble code is : P1254 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.
P1254 Possible Solution:
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.
P1254 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Fuel And Air Metering||Manifold Absolute Pressure/Barometric Pressure Circuit High Input||Cylinder 1 Injector Circuit Low||Timing Reference High Resolution Signal A Too Many Pulses|
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.
P1254 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP1254 OBD-II Trouble Code Pedal Correlation PDS2 and LPDS High is one of the definitions for the P1254; however your vehicles manufacturer may have a different definition for the P1254 code. Please check below for your specifi P1254 code.
Reason For P1254 CodeThe reason of P1254 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
P1254 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.