P2955 Engine Trouble Code
What is P2955?
With P2955, you may drive for several weeks with a malfunctioning MAF sensor, but expect decreased fuel economy and eventual stalling. Shop replacement costs $240–$400 depending on vehicle. The labour is straightforward, with most cost from the part itself.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Code: | P2955 |
P2955 Symptoms
Check Engine Light
Illuminated dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration
Starting Problems
Difficulty starting the engine
P2955 Code Structure
Understanding what each digit means in the P2955 powertrain trouble code:
| P | 2 | 9 | 5 | 5 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering (Injector Circuit Malfunctions Only) | Injector Circuit Malfunction - Cylinders | Cylinder 1 Injector Circuit Low | Crankshaft Position Sensor B Circuit Malfunction |
How to Fix P2955
Diagnostic Steps:
Poor running symptoms align with MAP sensor malfunction. In some cases, a faulty MAP sensor will not trigger a code. The issue may represent separate wiring concerns requiring individual diagnosis.
Repair Solution:
Crankshaft position sensor signals the computer for precise ignition and fuel injection timing. Faulty sensors cause rough running and reduced efficiency. Modern vehicles enter limp mode and illuminate the check-engine light.
Technical Notes:
Parts or components should not be replaced based solely on P2955 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
P2955 Description
P2955 engine trouble code is related to Crankshaft Position Sensor B Circuit Malfunction.
Main Cause
The primary reason for P2955 OBD-II Engine Trouble Code is: Injector Circuit Malfunction - Cylinders.