[s-cars] S4 no start

[Mark Strangways]

Maybe a bad common ground wire.

Mark
----- Original Message ----- 
From: "Jack Gagnon" <bullitt at gwi.net>
To: "Mark Strangways" <StrangConst at rogers.com>; "S-Car-List" 
<s-car-list at audifans.com>
Sent: Thursday, February 08, 2007 5:47 AM
Subject: Re: [s-cars] S4 no start


> Mark
>
> The shop told me that they tested the wire from the sensor to the ecu for
> both the air and coolant temp sensors and the wires are okay.  Maybe it is
> the sensor itself.  Kind of odd that both the air and coolant snsors are 
> bad
> at the same time?
>
> Jack
>
> -----Original Message-----
> From: Mark Strangways [mailto:StrangConst at rogers.com]
> Sent: Wednesday, February 07, 2007 11:24 PM
> To: Jack Gagnon; S-Car-List
> Subject: Re: [s-cars] S4 no start
>
>
> I don't think the ecu is the problem.
> I would look to the intake sensor, with it at such a low reading it would 
> be
> the cause of the very rich mixture.
>
> When any car that I have fails to catch, fires for a sec but does not run
> on, then I will crank it and hold the throttle wide open. This will help
> clear the fuel and should get the mixture to revert to default levels.
>
> My guess would be a shorted or open sensor or wire somewhere.
>
> Mark
> ----- Original Message -----
> From: "Jack Gagnon" <bullitt at gwi.net>
> To: "S-Car-List" <s-car-list at audifans.com>
> Sent: Wednesday, February 07, 2007 10:02 PM
> Subject: [s-cars] S4 no start
>
>
>>
>>
>>
>> I've got a few problems and need some help here.
>>
>> Problem 1:  car sits for two days, go to start car and battery is dead.
>>
>> Problem 2: Jump start with another vehicle.  Starter turns over fine but
>> car
>> does start. It fires for less than a second and dies.  Ty several times,
>> several hours apart, no go.  Get car towed to local shop.
>>
>> They leave car in shop over night and the car starts fine.  They fix
>> battery
>> drain and replace sticky brake cable.
>>
>> I pick up car this morning.  They say they started the car at 6:30 am
>> after
>> siting out overnight without any problems.  I try to start it and it 
>> fires
>> and dies immediately, no start again!
>>
>> The spent some time on the car today without success.  No codes.  Getting
>> spark, getting way too much fuel.  They are getting some strange readings
>> form some fo the sensors.  Intake air and coolant temp readings are -56.
>> The shop is not sure why these readings are so funky.  Any ideas?  It
>> might
>> be a bad solder joint in the ECU?  They intend to pull the ecu and look
>> around for a bad solder joint and reseat the chips.
>>
>> Anyone got any ideas?
>>
>> Thanks
>>
>> Jack
>>
>>
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>>
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