P1127 Engine Trouble Code
When you check engine light came on code P1127 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1127 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
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.
P1127 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Fuel And Air Metering||Engine Oil Temperature Sensor Malfunction||Crankshaft Position Sensor A Circuit Malfunction||Crankshaft Position Sensor B 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.
P1127 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP1127 OBD-II Trouble Code Exhaust Not Warm Enough, Downstream Sensor Not Tested is one of the definitions for the P1127; however your vehicles manufacturer may have a different definition for the P1127 code. Please check below P1127 code.
Reason For P1127 CodeThe reason of P1127 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.
P1127 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.