Hello all,
I'm hoping you can help me with my 1982 audi coupe 1.9 gt.
When warm/hot the engine idles very low...it does not pick up when I apply the accelerator and stalls...strangely if I turn the headlights on it does allow me to rev the car and it idles ok.
For your info the alternator is fine, coil, dizzy cap, rotor arm, leads and plugs are new.
I believe it to be electrical as when switching the headlights on the rev counter drops to zero and Visa versa. Today the rev counter only worked with lights on. I am surprised this would cause an engine misfire. I have checked grounds on battery and coil and seem good. Any help would be greatly appreciated. When the engine is cold it runs smoothly. Oh and fuse box is new also.
Forgot to mention with multimeter the battery registers at 13.8v and drops to 12.1v when I turn the headlights on.
Many thanks, Ian.