P1935 Engine Trouble Code
What is P1935?
P1935 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: | P1935 |
P1935 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
P1935 Code Structure
Understanding what each digit means in the P1935 powertrain trouble code:
| P | 1 | 9 | 3 | 5 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering | Injector Circuit Malfunction - Cylinders | Injection Pump Fuel Metering Control 'A' High | Crankshaft Position Sensor B Circuit Malfunction |
How to Fix P1935
Diagnostic Steps:
Regarding P1935, 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:
VSS concerns may stem from noisy input signals caused by RFI/EMI from ignition wires, charging circuits, or aftermarket equipment. Verify VSS reads 0 mph when transmission is in Park.
Technical Notes:
P1935 DTC specifically relates to camshaft timing. When cam timing is over-retarded, the check-engine light illuminates and this code sets. Verify VCT solenoid operation and check for contamination.
P1935 Description
P1935 engine trouble code is related to Crankshaft Position Sensor B Circuit Malfunction.
Main Cause
The primary reason for P1935 OBD-II Engine Trouble Code is: Injector Circuit Malfunction - Cylinders.