[s-cars] S4 no start

[Jack Gagnon]

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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