Dieseling/Run-On

Definition: Engine continues to run after key is turned off, but runs very roughly. If engine runs smoothly, check ignition switch and adjustment.

^ Check injectors for leaking. See "Dynamic Fuel Pressure Diagnosis" Chart A-4B. A-4B Dynamic Fuel Pressure Check
^ Check for proper canister purge operation. See Chart C-3. Chart C-3 Canister Purge Diagnosis