Okay, finally back from Uni I took it in to see George Fraser today. Three parts were immediately mentioned, OVP, ICV & ECU. I told him the OVP had been replaced, the ICV cleaned & also checked by replacement at a breakers. A spare a ECU was on hand but thankfully that didn't change anything. I say that because my ECU has been remapped by Brabus and I dread to think of the difficulty in getting one of these now, so long after the cars production.
Well, the mechanic who looked over it slightly readjusted the mixture but told me that KE-Jetronic system diagnosis is basically trial and error. I showed him the proportionalty of current draw and idle speed. He and then George who glanced over it at the end told me to get a high capacity battery to match the 150A alternator, about 100A battery I was advised. I think I'll add an Optima Yellow Top in addition to my Bosch Silver 66Ah to deal with the audio system.
After inspection the car now has a new problem! During mid-throttle acceleration the car stutters, the power delivery is no longer smooth. This behaviour does not seemingly manifest itself after 3500RPM when it begins pulling cleanly to redline. I can only assume it is something to do with the air intake system which I will remove and carefully reassemble later. Anyone had this problem before? Could this possibly be the gearbox?
Linear Mode
