Fuel Rail/System Pressure Too High
Table of contents
P0088 MERCURY Possible Causes
- Faulty Fuel Rail Pressure (FRP) Sensor
- Fuel Rail Pressure (FRP) Sensor harness is open or shorted
- Fuel Rail Pressure (FRP) Sensor circuit poor electrical connection
- Fuel pressure control valve stuck closed
How do I fix code P0088 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 P0088 MERCURY code
The cost of diagnosing the P0088 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)
P0088 MERCURY Description
The Powertrain Control Module (PCM) regulates the fuel rail pressure by controlling the fuel volume control valve and fuel pressure control valve. When the Powertrain Control Module is no longer capable of maintaining the fuel pressure the Diagnostic Trouble Code (DTC) is set.