[s-cars] Stumbling saga, update......

[chris chambers]

Jim,

Don't leap to throwing coils at it until you've completed maintenance, you need to make sure 
there is a good path from the coils to the spark plugs.

When I bought a set of the spark plug connectors they cost $5 each, so $25-$35 is what I 
would expect them to cost.

Recently helped a local S6 avant owner with a terrible miss.

Step 1. Replaced the old POS copper plugs that the previous owner had installed an unknown amount of miles.
Doing this improved the drivability greatly, 

Step 2. Swapped out his old spark plug connectors with a good used set I had lying around, after this the car ran perfectly.


HTH
Chris


----- Original Message ----
> From: Jim Fleischer <jim at almgt.com>
> To: s-car-list at audifans.com
> Sent: Thu, December 3, 2009 3:24:24 PM
> Subject: [s-cars] Stumbling saga, update......
> 
> Hey guys,
> 
> OK, so I put in fresh NGK BKR7EIX plugs this morning, and things greatly 
> improved, however still not right.  Whereas the car is definitely much more 
> driveable now, it still cuts out at high boost.  No more stumble at lower revs 
> under load, and the stumbles are fewer and shorter, but still there at high 
> boost particularly between 3K-4K RPM in third and fourth gear (haven't had the 
> road to get it in fifth under boost yet.)
> 
> Unplugged the injectors again and the car is just not driveable with any of the 
> injectors unplugged.  The miss is quite apparent, and different from what I 
> normally experience.
> 
> Also tried unplugging the MAF sensor, and the car is jerky and undriveable until 
> the revs come up, even then "limping" for sure.
> 
> I did not replace the spark plug boots, as I wanted to see if the plugs made the 
> difference.  Is this the next step?
> 
> I now defer to the list and it's infinite wisdom........
> 
> Thanks!
> 
> Jim Fleischer
> '95 s6 avant (better but not perfect)
> '83 ur (getting some action until the snow flies!)
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