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Pissing fuel, German crimp clamps and COLD RUNNING

Are you sure you have only 42 PSI in the fuel system. The MOTRONIC determines the fuel quantity based on the various parameters it measures and others it assumes to be correct, such as the fuel pressure. If the fuel pressure is to high the engine will get too much fuel as the MOTRONIC assumes a certain fuel flow rate based on fuel pressure and duration of the injector pulse. Is the exhaust sooty?????

Eckhard Grohe