94 S4 Won't Start

Huw Powell audi at humanspeakers.com
Fri Jan 23 08:24:58 PST 2015

Surely you can jump the FPR (carefully, fuse and switch in jumper)?

And try to stay away from assumptions.

Also, regarding the temps, 25 F is still below freezing.  It couldn't 
hurt to get the car indoors if possible, then do some tests.

On 1/23/2015 9:14 AM, b1biker at aol.com wrote:
> Grant, there were no indications of impending fuel pump failure; i.e. noise, poor performance, lack of top end, etc. that I have experienced in the past with fuel pump issues. I'm inclined to think that it is the fuel pump relay; thus my concerns about the LED tester and any possible substitution for it. I'm assuming that no power to the fuel pump indicates a bad relay. As for the gas I don't see how it could start at -5 and then fail to start at 25. Plus the gas in the tank is 10% ethanol.
> Gary
> -----Original Message-----
> From: Grant Lenahan <glenahan at vfemail.net>
> To: b1biker <b1biker at aol.com>
> Cc: AudiFans (Qlist) S4 Qlist <quattro at audifans.com>; s-car-list <s-car-list at audifans.com>
> Sent: Fri, Jan 23, 2015 7:04 am
> Subject: Re: 94 S4 Won't Start
> Was there any sign of the fuel pump failing? typically noise?
> What about water in the fuel, which then froze n the low temps?
> it seems to me any voltmeter to across the fuel pump leads tells you if you have
> power. Only if neg must you isolate the relay.
> Hope the powder was good
> Grant
> On Jan 22, 2015, at 10:34 PM, b1biker at aol.com wrote:
>> Here's the story. Car started this morning at -5. I drove to the ski area
> where the car sat for about 7 hours; when I attempted to start it at the end of
> the day it fired but would not respond to throttle inputs and after about 30
> seconds it died. After setting for about 10 minutes I again attempted to start
> the engine with the same results. At this point I disconnected the fuel line
> from the tank at the fuel filter and cranked the engine; there was no fuel flow.
> I'm assuming that the problem is either the fuel pump or the fuel pump relay.
> Bentley says that I need LED tester US 1115 to check the fuel pump relay and
> other associated components of the fuel delivery system. I would appreciate any
> thoughts as to the cause of the problem and how to go about diagnosis. Help will
> be greatly appreciated.
>> Gary L. Meier
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