Weird Idle problem.

[ranahan@charter.net (John Erickson)]

I think Allyn nailed it.  I have the exact same problem 
and both my micro-switches and my ISV are new.  My dpr 
current is set to bounce off 2.5ma on the low end (3-3.5 
average).  I'm going to set it back to spec (10ma) and see 
what happens.

I set the dpr low on the advice of many knowledgable 
people.  It looks like it created a problem.

John
87 16v

Euroroc II <flaatr@yahoo.com>
|Heres one for ya...
|
|My car idles perfectly, closed loop @ 870 RPM, smooth, 
|stock cam. new distributor & Cap & Rotor, differential 
|pressure regulator & fuel accumulator are new too along 
|with plugs, filter, and oil. The alternator is working 
|fine and the battery is happy, 13.5-14V from alternator, 
|no hard cranking when starting,  etc. etc. etc.
|
|When I drive the car and come to a stop, slowing in gear 
|to below 2K before letting the clutch out the engine 
|speed will drop to 500 RPM'ish bog for a split second 
|then return to perfect idle (or lower and occasionally 
|stalls although not that often) . This is repeatable and 
|annoying. Revving up and letting it drop is fine, holding 
|at a higher RPM and letting it drop is fine. the problem 
|only seems to happen when the car is driven, higher RPM 
|under load and let it out of gear under 2K. Letting it 
|out of gear above 2K is good, engine returns to idle 
|without dipping.
|
|Strange thing is that if I have the A/C on the entire 
|problem goes away.
|
|I've had it in the shop several times, for many days, and 
|they can't seem to figure it out. The problem remains so 
|I ask the group...
|
|Anyone have this problem before and how did you fix it? I 
|may have left out a detail or two so ask me any questions 
|you have.
|
|-Raffi
|
|
|_______________________________________________
|Scirocco-l mailing list
|Scirocco-l@scirocco.org
|http://neubayern.net/mailman/listinfo/scirocco-l


John
87 16v
Long Beach