Question about BMW X7 Series
2001 bmw 740iL with code p1441 is the leakage diagnostic pump, you will need to check the connection to the pump and also test the evap system for any leaks, you may have a leak in the system, may be a loose gas cap or a line leaking, this system is for the fuel vapors, there are lines that run from the fuel tank to engine and is filtered into a canister and theres valves and leakage pump in lines, a smoke machine would be needed along with a scan tool to check valves and get readings from system.you can check the gas cap and look around for broken lines. good day
Posted on Apr 11, 2011
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Posted on Jan 02, 2017
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