[s-cars] Nasty Misses when Pushing the "93 S4

[Robert Myers]

Is it a miss or a cut-out.  A miss is with one cylinder.  A cut-out just 
shuts everything off for a bit.

At 06:08 PM 3/9/2005, Bob DG wrote:

>So you think the nasty misses are a failing ignition coil? I am 
>experiencing the exact same problem, intermittent fuel or spark cut-off.
>
>>From: Robert Myers <robert at s-cars.org>
>>To: "Bob DG" <bobs6 at msn.com>, richard.tanimura at gmail.com,
>>chris.holinger at gmail.com
>>CC: s-car-list at audifans.com
>>Subject: Re: [s-cars] Nasty Misses when Pushing the "93 S4
>>Date: Wed, 09 Mar 2005 14:58:55 -0500
>>
>>
>>The OEM Bosch 3 bar pressure transducer is NLA.
>>
>>A 2.5/3.0 bar VMAP (http://moreboost.com) is a suitable replacement.
>>BUT...  I don't think it will solve the problem with a failing ignition coil.
>>
>>At 02:52 PM 3/9/2005, Bob DG wrote:
>>
>>>What about a replacement for the 3.0 bar sensor?
>>>
>>>>From: Richard Tanimura <richard.tanimura at gmail.com>
>>>>Reply-To: Richard Tanimura <richard.tanimura at gmail.com>
>>>>To: Chris Holinger <chris.holinger at gmail.com>
>>>>CC: s-car-list at audifans.com
>>>>Subject: Re: [s-cars] Nasty Misses when Pushing the "93 S4
>>>>Date: Wed, 9 Mar 2005 08:17:13 +0100
>>>>
>>>>Chris,
>>>>
>>>>Those symptoms sound familiar. Lots of us have BTDT. Could be a bad
>>>>MAP sensor. Could also be a leak in the boost tract. Leaks are pretty
>>>>common if you still have not changed your rubber hoses in a while.
>>>>
>>>>1. Pressure test the boost tract and listen for leaks. Check the
>>>>clamps for tightness.
>>>>
>>>>2. If it isn't a leak and you are certain it is the MAP sensor I
>>>>recommend VMAP. VMAP makes a dandy replacement to the Bosch 2,5 bar
>>>>sensor.
>>>>
>>>>http://moreboost.com/
>>>>
>>>>Rich
>>>>
>>>>On Tue, 08 Mar 2005 20:47:03 -0800, Chris Holinger
>>>><chris.holinger at gmail.com> wrote:
>>>> > In Seattle, WA and was just diagnosed with a bad ECU pressure sensor.
>>>>The
>>>> > Beast is shutting off the fuel when I really put the spurs to it so 
>>>> it¹s
>>>> > bucking big time.  Or, as Bob Myers put it:
>>>> > ³symptoms:  starts fine.  Idles fine. Cruises at constant speed fine.
>>>>Will
>>>> > accelerate if not done too enthusiastically.  If you get heavy on 
>>>> the loud
>>>> > pedal you have a nasty miss.²
>>>> > Suggestions based upon the fact that I would like to upgrade in the near
>>>> > future?  Keep in mind, I just want to make it back to Chicago by the 
>>>> end of
>>>> > the month safely.
>>>> >
>>>> > Å’Preciate any other help/advice you can offer.
>>>> >
>>>> > Thanks,
>>>> > Chris
>>>> > --
>>>> > http://homepage.mac.com/cholinger/headinwest/
>>>> >
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>>>> >
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