Rough idle problem

[Bill Lewis]

I have seen a similar problem on Rabbits, etc with the Lambda K-Jetronic,
only in reverse.  The thermal air valve gets stuck in the normal 'hot'
condition, causing a very low cold idle.  You can test that valve by looking
through it while it is heating up.  Usually it is connected via the fuel
pump relay, so you can just turn on the key.  You'll need to connect +12V
to it some other way.

Porsche 914 with D-Jetronic would sometimes take a really long time for the
idle to drop down due to a similar problem.

.../Bill

-- 
Bill Lewis - wrl at access.digex.net