2002 BMW 525d P1443 Fault Code: Slow Starting, Worse When Engine is Hot
My 2002 BMW 525d is showing a P1443 fault code, which manifests as a slight delay in engine starting. The issue becomes more noticeable when the engine is hot. I'm looking for accurate troubleshooting steps and any known fixes related to this specific diagnostic trouble code on my model. Any insights or advice would be greatly appreciated.
P1443 indicates a 'Leakage Diagnostic Pump Control Circuit Signal High'. Please check the wiring harness and electrical connections to the Leak Detection Pump (LDP) for proper voltage and ground continuity. Ensure there are no loose or corroded connectors. This is a common issue on 2002 BMW 525d models, so verifying the circuit integrity should help resolve the problem. Good luck — please update if you find any resolution.