I have a 88' Audi 90 non Quattro with 2.3 (NG) and 5speed. Last week the tach stopped working. Where does the tach get it's signal from. The wiring diagram I have says the "Speed sensor" but doesn't give a hint as to where it is. Also I get a check engine light for about 3 mo that I can't seem to figure out. All sensors seem to be working. I average 33.1 MPG on Reg gas. O2 sensor voltage changes when I enrich or lean out the fuel mixture. Any help is appreciated as I want to fix this before the snow starts and things get worse.
- posted
17 years ago