Learn about symptoms, repair options, and get expert help at repairpal.com. We have the best evap system leak detection pump for the right price Buy online for free next day delivery or same day pickup at a store near you. The leak detection pump is the component that often triggers those check engine warning lights when it detects small leaks that would be hard to see It is required under federal law as it ensures your evaporative emission system (evap) is functioning correctly. The leak detection pump is a vital component in a vehicle’s evaporative emissions control system (evap), responsible for identifying and signaling fuel vapor leaks
By pressurizing the evap system and monitoring for any drops, the leak detection pump helps ensure that fuel vapors remain contained and are routed to the engine for combustion instead of escaping into the atmosphere What is a leak detection pump used for Many modern vehicles, particularly those manufactured by bmw and other european and japanese automakers, utilize a leak detection pump (ldp) to pressurize the evap system for diagnostic purposes This pump introduces pressurized air into the evap system to check for leaks. Obd2 systems might purge the evap canister while the engine is running, so avoid packing the fuel tank during refueling Common causes of the p2400 code include a bad evap system leak detection pump, wiring issues, and pcm failure
