P1277 Engine Code Repair
Meaning of P1277 engine trouble code is a kind of powertrain trouble code and when your car's 'P1277 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.
P1277 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P1277 code is occuring now you should check P1277 repair processes.
Now don't ask yourself; What should you do with P1277 code ?
The solution is here :
P1277 Possible Solution:
Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.
P1277 Code Meaning :
P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
1
Fuel And Air Metering
2
Fuel Rail/System Pressure - Too High
7
Cylinder 4 Contribution/Balance Fault
7
Ignition Coil A Primary/Secondary Circuit Malfunction
The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.
P1277 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP1277 OBD-II Trouble Code Cylinder #7 High To Low Side Open is one of the definitions for the P1277; however your vehicles manufacturer may have a different definition for the P1277 code. Please check below for your specific m P1277 code.Main reason For P1277 CodeThe reason of P1277 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High. |
P1277 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.