Can somebody ID this new idle quirk?, starts & runs well -- until warm Options

[Prospectfarms]

(IMG:style_emoticons/default/beer3.gif) (IMG:style_emoticons/default/beer3.gif) (IMG:style_emoticons/default/beer3.gif)

O.K., I'm better now... D-jet is driving me to drink.

The 1.7 starts and runs well until it warms up. After 10 min. idling smoothly @ 900 it hesitates two or three times and stops idling at all, which means I can't keep it running long enough to set the timing. I can keep it going by feathering the throttle, but my nice smooth idle is gone. I reproduced the symptom three times in a row today.

By clamping off the Vac hoses one-by-one it appears the FI components seem to be doing what they're supposed to. No other vacuum or capacitance probs. found so far. Haven't checked the injectors.

This started after I repaired the ground strap on my distributor -- must have bumped something else. CHT?

I have the FI diagnostic checklists and am working on them. If this was a carburetor I'd say it was running with a clogged idle jet (IMG:style_emoticons/default/wacko.gif) . These symptoms seem specific and uncommon. At least I've not seen others posts that describe the same thing. Did I miss one?

[Mike Bellis]

Try this...

L Jet Manual

[Prospectfarms]

Try this...

L Jet Manual

Thnkz Mike,
Although "my" ECU monitors mainly manifold pressure (its a dog, not a lamb) I've been looking for the L-jet document you linked. IMHO, to take best advantage of the resources offered from 914 enthusiasts U've got to be able to parse suggestions and checklists that might represent "blended" experience from the two FI management system. So I've enjoyed reading the book.

As an aside I note that in the AC VW world there's a consensus that "D-jet, bad, L-jet," good." Not so with "Teeners," as far as I can see. In fact it's somewhat the opposite. Interesting, no? (IMG:style_emoticons/default/chowtime.gif)

Best wishes.