Hi
I have a 1984 GTI Rabbit.
For the past few months sometimes when I start the car, the runs poor and the tach does not work, it stays at 0 rpm. Usually after about a minute the tach starts working and at the same time the car runs fine.
Yesterday the car wouldn't start, I noticed while cranking the started that the tach did not move during cranking? Should the tach move via cranking?
I need to investigate but I have a feeling in might be a intermittent contact, I need to look at the schematic but I recall that there are 1 or 2 relays that deal with the tach and the cis system. Perhaps a relay is going bad?