P3195 Engine Trouble Code
What is P3195?
P3195 indicates potential catalytic converter failure. If completely failed, your vehicle may not run properly and fuel economy will suffer significantly. Average replacement cost is $2,000–$2,140. This repair requires professional service and should not be delayed.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Code: | P3195 |
P3195 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
P3195 Code Structure
Understanding what each digit means in the P3195 powertrain trouble code:
| P | 3 | 1 | 9 | 5 |
|---|---|---|---|---|
| Powertrain Code | Ignition System Or Misfire | Fuel Rail/System Pressure — Too High | Crankshaft Position Sensor A Circuit Malfunction | Crankshaft Position Sensor B Circuit Malfunction |
How to Fix P3195
Diagnostic Steps:
The catalytic converter has oxygen sensors before and after it. When warm and in closed-loop mode, the upstream O2 sensor reading should fluctuate, while downstream should remain steady.
Repair Solution:
Gasoline engines use spark plugs to ignite fuel-air mixture. Proper timing ensures the explosion occurs when the piston is positioned correctly. Incorrect plug wire sequencing causes mistimed ignition, resulting in poor performance.
Technical Notes:
P3195 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.
P3195 Description
P3195 engine trouble code is related to Crankshaft Position Sensor B Circuit Malfunction.
Main Cause
The primary reason for P3195 OBD-II Engine Trouble Code is: Fuel Rail/System Pressure — Too High.