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!