REV COUNTER issue for 1.8t

Rev counter will work with this scheme with diodes if you add a 52ohm resistor between zener and counter. It works with all 1.8T AGU (ME 3.8 ECU). For ARZ (me 7.5) i used the standard wire for engine RPM signal from ECU (pin 6 - green i think but not sure) and it works too.

i supply the tach fixes for these  you can reach me on 07445441193

Based in Birmingham, these are £35 +Postage, work with VAG OEM and Aftermarket ECU.

Are you still doing these?