B5 S4 No start
glenahan at vfemail.net
Thu Dec 21 19:43:38 EST 2006
The famous ignition switch?
On Dec 21, 2006, at 6:11 PM, Mark R wrote:
> Thought I'd throw it out there to see if anyone has any BTDT on the
> This car has a shady history- front end wreck, purchased by local kid
> his dad to fix up, recently sold to another local (this one in
> Car definately has aftermarket turbos, downpipes, Hatachi MAF
> (AWE), etc. Only prior experience I have with the car is clearing
> (random misfires) and CEL (repair of MAF wiring splice, then clearing
> Just prior to being sold to current owner, car was run out of gas.
> New owner drives car in for tires at a local tire place, several hours
> later, it won't start. Cranks well, no start. I tow car to my place,
> fuel (approx. 2 gallons, as 1/8 tank showing), change fuel filter (I
> where they put them on the Quattros, but that's ANOTHER tirade).
> Still no
> Cranks well, added a battery booster (even though battery was topped
> but no start, Shows no codes (this is what surprises me). Fuses in
> panel check OK.
> I pulled ECU overnight, reset the batt. disconnected code. No start.
> have a stock ECU from my own S4 I tried as well (same P/N, one month
> in production). Same results.
> Noticeable is that MAF g/s show as "0" while cranking. IDK if this is
> "normal" or not. I don't think I've ever cranked a newer Audi more
> than a
> few seconds.
> So I have to do the "back to basics" approach (spark, fuel, air) to
> diagnose, but I suspect I'll find some faulty wiring (since the car has
> shady history and major work done in the past).
> Any BTDT? Good ideas? What gets me is no codes at all.
> Mark Rosenkrantz
> quattro mailing list
> quattro at audifans.com
> Watch this space for ads :)
More information about the quattro