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Summary of change:
With all the modifications I was starting to have problems getting my car tuned with Motronic. I therefore decided to purchase a PnP VEMS, wideband lambda and EGT sensor. The package arrived promptly down here in South Africa! I then did the crank home polarity change and plugged in the VEMS. I installed the latest version of VEMSTune http://vems.hu/download/v3gui/vemsTune-Install-2008-09-03.exe using firmware_1.1.27. The car started first time but was way too rich - I changed to injector_727cc.txt and the car started running nicely! I have not installed the WB lambda or the EGT yet. Next step was to verify that the sensors all gave to correct reading. I noticed that MAT reading and CLT readings were not correct. I tried to load a different CLT file and VEMSTune showed a fatal error and said something like "ECU in Boot Mode." I can now not communicate with the ECU at all "ECU not connected" Please help!
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