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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (2.0L - DTCS P007D To P0107) >> DTC Troubleshooting >> P0088 Fuel Rail Pressure Too High - Bank 1 >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FUEL QUANTITY SOLENOID DTCs PRESENT
HIGH PRESSURE FUEL SYSTEM FUEL LINES BENT OR KINKED
FUEL QUANTITY SOLENOID/HIGH PRESSURE FUEL PUMP
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  2.0L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .