[s-cars] 1.8T coil odd behavior

[Michael Wakefield]

Dave,
My conversion doesn't have any sort of strange behavior (other than  
smoothly reving to 7000+) but I will pay more attention to the first  
15 seconds or so and report if I find anything. The symptoms sound  
like the heater in the oxygen sensor is not operating. Since the  
power for that heater comes from the same bank of connectors as the  
coils, there may be a connection. I ran an individual power wire to  
each coil, like the stock setup, which may be different than  
conversions by others.
MIke Wakefield
93S4
97Cabriolet

On May 31, 2006, at 7:05 PM, djdawson2 at aol.com wrote:

> OK... ever since I installed my 1.8t coil conversion, I have been  
> repeatedly subjected to a weird behavior immediately following  
> startup... hot or cold.  The car starts fine, and idles fine.  But  
> when you try to feed in the throttle, it kind of bogs down as if it  
> isn't getting fuel.  It simply won't take any pedal, and engine  
> speed refuses to increase.  This lasts 15 or so seconds, and then  
> goes away like nothing is wrong.
>
> This behavior started immediately after my coil conversion, and  
> occurs almost every time the car is started.
>
> So... I had written off any possible connection between my coil  
> conversion and this strange behavior until today.  This afternoon,  
> Dennis Graber and I were working on his S6's A/C... and in passing  
> conversation, Dennis mentioned this strange behavior on his S6...  
> post 1.8t conversion.  I was laughing as he described the exact  
> same symptoms I have following startup.  Hence this post.
>
> My questions:
> 1) Is anyone else that has done a 1.8 coil conversion experiencing  
> this same behavior?
> 2) What possible connection could exist between a change of coils,  
> and this initial startup behavior?
>
> That's it.
>
> Dave
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