DTC P1486: EVAP Leak Monitor Pinched Hose Found: Testing
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition on, with engine off. With the DRBIII(R) scan tool, read the DTCs and record the related freeze frame data. Is the DTC Good Trip Counter displayed and equal to zero? If yes, go to next step. If no, see INTERMITTENT CONDITION under SELF-DIAGNOSTIC SYSTEM.
- Pressurize the EVAP System. On Miller Tool (8404), hold down the remote smoke/air start button and monitor the gauge. When the flow meter gauge on the EELD reads zero LPM, the EVAP system is completely pressurized. Disconnect the LDP pressure hose at the EVAP canister. The LDP pressure hose is the hose that connects the EVAP canister to the leak detection pump. Did the pressure drop when the hose was disconnected? If yes, go to next step. If no, replace the EVAP canister.
- Connect all previously disconnected hose(s). Repressurize the EVAP system. On Miller Tool (8404), hold down the smoke/air start button and monitor the gauge. When the flow meter gauge on the EELD reads zero LPM, the EVAP system is completely pressurized. Disconnect the EVAP hoses at the purge solenoid. Did the pressure drop when the hose was disconnected? If yes, go to next step. If no, repair or replace hose/tube as necessary.
- Disconnect and remove the LDP pressure hose. The LDP pressure hose is the hose that connects the EVAP canister to the leak detection pump. Inspect the LDP pressure hose for any obstructions or physical damage. Is the LDP pressure hose free from defects? If yes, replace the leak detection pump. If no, repair/replace hose as necessary.