This document will need photos for each step. While this article will focus primarily on the Motronic 3.3.1 system in the E36, the general information will apply to many other similar systems. The engine computer is often referred to as the ECU or the DME. The ECU is located in a cubbyhole behind the right […]
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What is EWS? EWS is “Elektronische Wegfahr Sperre”. Don’t speak German? Then that probably wasn’t helpful. EWS is BMW’s electronic drive away protection system. The exact implementation of EWS on the E36 varied slightly through the years, but the general lack of long term reliability stayed the same. Key failures, antenna failures, and module failures […]
When flashing new software to your car, it is important that the voltage be held constant. That stability will ensure there are no problems with writing the data to the very sensitive ECU. Any fluctuations in voltage can cause a “bad write”, and as a worst case, “brick” the ECU. Voltage drops can be caused by a […]
Pressure testing the intake system on a turbocharged car is the best way to check for leaks. Any leak in the intake system can negatively impact the efficiency of the system. A leak after the MAF can also cause drivability and running issues. Pressurized leaks may not be apparent in vacuum testing, and may appear […]