P1950 Engine Trouble Code
What is P1950?
P1950 code can indicate a faulty oxygen sensor, which may eventually damage the catalytic converter (repair cost: $2,000–$2,200). Professional diagnosis costs around $200–$210. Oxygen sensors are often straightforward to replace — check your owner's manual for location and instructions. This issue should be addressed promptly to prevent further damage.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Code: | P1950 |
P1950 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
P1950 Code Structure
Understanding what each digit means in the P1950 powertrain trouble code:
| P | 1 | 9 | 5 | 0 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering | Injector Circuit Malfunction - Cylinders | Cylinder 1 Injector Circuit Low | Shift Solenoid E Performance or Stuck Off |
How to Fix P1950
Diagnostic Steps:
Regarding P1950, carefully inspect the wire harness near the intake manifold bracket, best accessed from below near the oil filter. Look for chafing, pinching, or damaged insulation.
Repair Solution:
Disconnected, dirty, or fouled spark plugs commonly prevent proper engine operation. Replace spark plugs every season or 25 hours. Verify proper spark plug gap. If plugs are good, check ignition components: spark plug wires, coils, and ignition module.
Technical Notes:
Parts or components should not be replaced based solely on P1950 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
P1950 Description
P1950 engine trouble code is related to Shift Solenoid E Performance or Stuck Off.
Main Cause
The primary reason for P1950 OBD-II Engine Trouble Code is: Injector Circuit Malfunction - Cylinders.