2002 Jeep Grand Cherokee 4.0 Lifting P0523 Code: Causes and Fix for Idle Stalling

Model: 2002 Jeep Grand Cherokee 4.0 Fault Code: P0523 Posted: 2017-12-16 23:13

My 2002 Jeep Grand Cherokee 4.0 has been experiencing frequent idle stalling over the past month. Initially, the check engine light came on with code P0523, which I initially thought was related to a faulty intake temperature sensor — I replaced that component. However, after a few weeks, the vehicle started stalling again at idle, and now the OBD2 scanner is showing P0523, indicating an issue with the oil pressure sensor. I'm wondering if this oil pressure sensor fault could be directly causing the engine to stall at idle. If not, what other factors might explain this behavior? The vehicle has been running intermittently, and I'm concerned about potential underlying mechanical or electrical issues.