Get the Bentley already!
It's got a section explicitly for the K-Jetronic system as found in the Turbos.
Dang man, you made me dig up the last IPD catalog that was sent to me. K-Jet adjustment tool part number T54630... $4+shipping.. it's a long 3mm hex drive thingy with a big handle. Page 30. There's a picture demonstrating how to use it. If you don't have a copy, go over to ipdusa.com and ask for one (they're free).
Anyways. I fear the fuel system, so I haven't messed with it beyond "oh man this needs more brute force than I'm willing to experiment with". From the picture, it looks like the adjustment thing is nestled in between the fuel distributor and the cobra looking air filter cover. In the picture there's no guard plate, on my car there's a guard plate to prevent damage. The Bentley makes it look like the mixture adjustment is more off to the side.
***But wait, there's more***. I don't think mucking around with the idle mixture blindly is a good start. If it's running.. at least check stuff first.
When you say it starts but barely runs.. does it run when it's warmed up? If it's nicer when warmed up, I'd start questioning all the cold temp fuel enrichment stuff: control pressure regulator, thermal time switch, cold start injector... not the idle mixture. Someone please correct me if I'm wrong here, but these components can fail in a too lean *or* too rich mode.
Next: for best results you need to adjust the mixture *with the engine running* (Step 5, page 240-21 in the B manual).
Ever notice that little thing conveniently located behind the distributor, and right under the intake manifold? That's the control presure regulator.
http://www.brickboard.com/ARCHIVES/1998AUG/20008879.shtml
- alex
'85 244 Turbo
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