3.2 fueling problem fixed.

Waggin · 01-19-2007, 06:04 PM

After filling the tank (or less), it would take several long cranking attempts to start unless I pressed the the throttle pedal while cranking. This happened every time I gassed up.

After a couple months of this, it finally lit the CEL, with an EVAP system, large leak.

The fix (after 3 days in the shop) was to replace the purge valve.

My guess is that the valve was stuck open, so when I filled the tank, the rich fuel vapor just passed through the charcoal canister and flowed into the (large) intake tract.
This resulted in a too rich condition, unless I let in more air by opening the throttle.

(The fuel filler neck is a tight fit around the standard pump nozzle, which probably helped force the vapor through the system, instead of outside.

Video

Gettysburg · 01-19-2007, 06:38 PM

yam · 01-19-2007, 08:01 PM

azoceanblue · 01-19-2007, 08:22 PM

scipher · 01-20-2007, 10:23 PM

01-19-2007, 06:38 PM	#2
Gettysburg AudiWorld Senior Member Garage is empty, add now Join Date: Mar 2005 Posts: 893	That was painfull to listen to; like nails across a chalkboard. __________________ Used to have: - '01 Audi TT Coupe(180hp quattro) - '93 VW Corrado SLC (still my favorite) - '82 VW Scirocco

01-19-2007, 08:01 PM	#3
yam AudiWorld Member Garage is empty, add now Join Date: Aug 2005 Posts: 541	Glad you finally got it resolved.

01-19-2007, 08:22 PM	#4
azoceanblue AudiWorld Member Garage is empty, add now Join Date: Sep 2006 Posts: 332	Thanks for the video, if only everyone had a video camera, when they are describing a problem ^5 __________________ .:\|Ruby Q.:\|:. 2009 A3 Quattro.:\|:.Aruba Blue Pearl Effect.:\|:.S line.:\|:.Nav.:\|:.Convenience .:\|:.Open Sky.:\|:.Cold Weather\|:.

01-20-2007, 10:23 PM	#5
scipher Junior Member Garage is empty, add now Join Date: Jun 2006 Posts: 205	x2 __________________ I wish my A3 had QUATTRO, but it still means the WORLD to me.

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