Hi all-

I posted a week or two ago about a cold start problem with my 1980GT. The only suggestion was that I had a problem with the warmup regulator. Yesterday, I decided to take a minute and see if the cold start injector was working, since it's right on top and easy to access. Lo and behold, crank but no fuel from it. Checked with a voltmeter on the wiring, no voltage. Jumped the injector straight to the battery, and a really nice jet of fuel comes out.

So I start thinking it must be the thermal time switch... but then, it occurs to me, that this car isn't started with the ignition switch, there's a pushbutton on the dash rigged up by the PO. Obviously, that's the first piece of the problem, no signal to the TTswitch from the ignition.

My question is, on a theoretical level, should I just hook the pushbutton start button to the TTswitch? Maybe just hook the start button straight to the cold start injector? Or should I take the time to figure out why the key doesn't start the car anymore? How big a deal is it to troubleshoot the ignition switch?

The car is pretty nice, all original, rust free, so I don't really want to make a mess of it. OTOH, there are a fair number of odd looking wiring fixes and jumper wires running around the engine bay already.

Many thanks for any advice... this board is awesome.
Kyle
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1980 242GT 197K, 1990 744Ti 113K