P1185 Engine Trouble Code
What is P1185?
When P1185 code appears, first check your gas cap. Pull over safely, ensure it is tight, and inspect for cracks. A loose or damaged gas cap affects fuel-system pressure and emissions. A replacement cap costs about $3–$10. This simple fix can resolve the code and improve fuel economy.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Code: | P1185 |
P1185 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
P1185 Code Structure
Understanding what each digit means in the P1185 powertrain trouble code:
| P | 1 | 1 | 8 | 5 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering | Fuel Rail/System Pressure — Too High | Ignition/Distributor Engine Speed Input Circuit Malfunction | Crankshaft Position Sensor B Circuit Malfunction |
How to Fix P1185
Diagnostic Steps:
Oxygen sensors measure exhaust gas oxygen content to optimise air-fuel ratio. This optimisation improves fuel economy and reduces emissions. Sensors degrade over time and require periodic replacement.
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:
P1185 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.
P1185 Description
P1185 OBD-II Trouble Code: FTS High Fuel Pump Temperature Sensor High is one of the definitions for the P1185; however your vehicles manufacturer may have a different definition for the P1185 code. Please check below for your s
Main Cause
The primary reason for P1185 OBD-II Engine Trouble Code is: Fuel Rail/System Pressure — Too High.