Fuel Rail/System Pressure Too High
Table of contents
P0088 SATURN Possible Causes
- Sticking Fuel Rail Pressure Regulator
- Faulty Fuel Rail Pressure Regulator
How do I fix code P0088 SATURN?
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 SATURN code
The cost of diagnosing the P0088 SATURN 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.
When is the code detected
The actual fuel rail pressure is above operating specifications.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0088 SATURN Description
The fuel injection pump supplies high-pressure fuel to the fuel injection rails, and then to the fuel injectors through high-pressure pipes. The Fuel Rail Pressure (FRP) sensor is a three-wire sensor mounted in the right fuel injection rail. The FRP sensor uses a 5-volt reference circuit, a signal circuit, and a low reference circuit to monitor fuel rail pressure. This information is sent to the Engine Control Module (ECM) to assist in the fueling of the engine. The Diagnostic Trouble Code (DTC) will set when the actual FRP is more than the desired FRP.