smithy

its a "running too lean" error, and the responses are everything from hoses to MAF to fuel filters. Has anyone dealt w/ this recently? I've got 48K miles, but am 3wks out of warranty.

The fuel filter is new, so I can rule that out. Does anyone have pictures of the hoses going to the bpv and the FPR...those seem to be the regular culprits, along with cleaning (hopefully not replacing) the MAF and double checking against exhaust leaks...

Any other ideas on what I should look into. I don't have vag-com so I don't have access to other data.

Thanks

Theresias

When posting fault codes, please post VAG specific fault codes - use the copy'n'paste function!

smithy

as I said I don't have vag-com and P0171 is the only code that came up using autozone's scanner.

P0171 System too Lean (Bank 1)

I'll have to check again, but wouldn't that be the same as:
16555 PO171
Fuel Trim,Bank1 System too Lean

Hopefully thats what you're talking about

Andy@Ross-Tech

<ul><li><a href="http://www.ross-tech.com/vag-com/cars/fuel-trim.html">http://www.ross-tech.com/vag-com/cars/fuel-trim.html</a</li></ul>

smithy

willing to vag-com others cars in exchange for stuff..

Thanks again

sephir

Wish I had better advice, but it could be caused by any of the following things. You may need to go through one by one. Of course, having a VAG-COM could help by measuring how severe the problem is, but then again it may not help in this case. Audi suggests checking in this order:
1.) exhaust leak for bank 1 up to the heated O2 sensor
2.) large air leak in intake leading up to and including MAF
3.) spark plug or ignition cables are bad in bank 1
4.) malfunction of bank 1 fuel injectors
5.) carbon deposits on intake valves
6.) fuel pressure too low due to leaks, vacuum line problems, plugged fuel filter, bad fuel pump, etc
7.) EVAP canister purge valve sticks in closed position

sephir

http://www.steve-hall.com/cgi-bin/VAG-Locator.pl<ul><li><a href="http://www.steve-hall.com/cgi-bin/VAG-Locator.pl">http://www.steve-hall.com/cgi-bin/VAG-Locator.pl</a</li></ul>

smithy

spare an hour this weekend? if so please email me and let me know what you'd like as payment.

The steve-hall list is too out of date.


Thanks again

maneuen_at_aol.com