Weird Idle problem.

[flaatr@yahoo.com (Euroroc II)]

Oops I forgot,

'87 16V 1.8L mostly stock, no major engine mods.

-RGK -


At 01:45 PM 9/20/02 -0700, Euroroc II wrote:
>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
>
>
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