What Causes Abnormal Power Loss in BMW Engines?

[OAngela]

BMW engine abnormal power loss may be caused by fuel supply issues or ignition problems. Here are detailed explanations for the causes of abnormal power loss in BMW engines: 1. Fuel supply issues: Priority should be given to checking the fuel pump. Secondary checks include whether the fuel injectors are functioning properly, whether fuel atomization is adequate, and whether there are any fuel injector leaks. 2. Ignition problems: Possible causes include delayed ignition, damaged spark plugs, carbon deposits or oil contamination on spark plugs, excessive spark plug electrode gap, insufficient angle of the distributor centrifugal ignition advance device, or the vacuum ignition advance device failing to meet the requirements for ignition timing adjustment. Among these, the first step should be to check for carbon deposits or damage on the spark plugs, followed by checking the ignition timing, and finally examining other potential issues.