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Re: [T3] Mystery Miss


On 18 Feb 2003 at 9:40, Jaranson, John (J.W.) wrote:

> Under any kind of engine load, no apparent miss
> When under very light throttle, an inconsistent miss is very present.
> 
> The miss is there in all gears and at different RPMs, but only under light
> throttle.  As soon as I push in the clutch and idle or accelearte, the miss goes
> away.

The only think I can think of is the fact that these are the conditions when 
you should have the max timing advance. I wonder if your point's plate ground 
braid is bad in the dist, or if something else is bad there, or if it's 
possible that you're actually getting TOO much advance and the engine can't 
handle it.  

If you can get someone to go for a ride with you, hook up an inductive timing 
light and have them just watch the light flash while you drive. If the flashes 
get irregular when the missing starts then you know that it's an ignition 
problem. If the lights stay regular while the missing continues, then it's an 
engine problem.

You MAY have to clip on each of the 4 SP wires in turn to see the problem. If 
so, that will narrow it down to a particular cylinder.

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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