Fuel Delivery System Malfunction High
Table of contents
P1181 MERCURY Possible Causes
- Restriction in the fuel line
- Plugged fuel filter
- Faulty Fuel Pressure Regulator
- Faulty Fuel Rail Solenoid Shutoff Valve
- Fuel Rail Solenoid Shutoff Valve harness is open or shorted
- Fuel Rail Solenoid Shutoff Valve circuit poor electrical connection
How do I fix code P1181 MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1181 MERCURY code
The cost of diagnosing the P1181 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1181 MERCURY Description
The Powertrain Control Module (PCM) receives Fuel Tank Pressure (FTP) information from the Natural Gas module (NG), which uses the information to infer Fuel Rail Pressure (FRP). The Diagnostic Trouble Code (DTC) will set and the test fails when the inferred pressure is less than a maximum calibrated value.