I just finished my a6/z6 mini-me swap, and for about the first 60 miles it didn't throw any codes, but this morning I cranked it and ran for about 10 minutes and it came one. I returned home and cleared the code, then it set off again about 2 miles down the road. I have the haynes manual, but am a little confused as to where to check the volts and ohms.

I'm using a Rywire obd0 -> obd1 conversion harness with a universal 4 wire 02 sensor, which i used butt connectors to connect to a 4 wire connector i cut out of another car.

I checked all of the wires in the butt connectors, and they are in there good.

Also, on a side note, my tach isn't working since the swap. I had occasionally had problems with it not working before, but i would bump the dash and it would begin to work. Again I used the rywire conversion from the dizzy.

 

sorry to go off topic but how did you check your ecu codes? I recently converted to OBD1 running ZC/vtec with the rywire conversion harness.

 

2 extra wires on the new harness that don't have plugs, twist them together.