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Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by Peter Warman <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=Peter+Warman' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 12:36 pm

( Optional ) Engine Code / Type: AUM
( Optional ) ECU Type: ME 7.5
( Optional ) Scanner Used: VAG-Com

Audi A3 1.8T AUM 2003 (petrol)

Fault codes:
P1297 17707
Pressure drop between Turbo and Throttle (check D.V.!)

P1137 1745
Fuel Trim Bank 1 (Add): System too Rich - Intermittent

Had this in before Christmas with the MIL on then cleared, running out of time so said bring it back in if the MIL comes back on which it did yesterday

I have done a smoke test to see if there is a leak between throttle valve and turbo, but no leaks

What i have noticed is that after idling for 2 minutes the EVAP solenoid starts to tick quite loudly which did not seem right when just ticking over, using VAG-Com the valve opened to 31% for about 2 minutes then shut off

Is this normal when idling?. If the EVAP solenoid opens at the wrong time could it cause a pressure drop or rich mixture?

Peter

Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by Milan <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5374' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 1:33 pm, in reply to "Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #"
Milan Lazarevic

Yes, its normal

Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by Dave Harney <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2603' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 1:40 pm, in reply to "Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #"
Dave Harney

Hi Pete,
Remove the divertor valve and smoke test it with no vacuum applied - it may be sticking open and giving you 17707

I wouldn't expect evap solenoid to be working at idle (unless the system is doing some sort of test !! - unlikely though) and would cause a rich mixture if its open at idle which your code
Fuel Trim Bank 1 (Add): System too Rich - Intermittent is indicating.

Regards
Dave

You can trim a sheeps wool many times, but you can only fleece it once !

Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by aidan <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 1:52 pm, in reply to "Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #"
Aiden Birley

Hi

Well worth cleaning throttle body & re adapt throttle, that can put up pressure loss codes on these.

Aidan

Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by Dave Harney <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2603' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 2:25 pm, in reply to "Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #"
Dave Harney

Good point Aidan !

If it's normal for the evap to operate at idle then it must only be when system is in closed loop so that the injector duration can be adjusted.
What are the fuel trim figures ?

Regards
Dave

You can trim a sheeps wool many times, but you can only fleece it once !

Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by Peter Warman <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=Peter+Warman' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 3:16 pm, in reply to "Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #"

Thanks lads

Dave and Aidan
I will get the car back in and check the items mentioned, he only works next door so can look anytime

I did a bit of research and as Milan says some systems do purge at idle

Peter

Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #

Posted by aidan <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 7:32 pm, in reply to "Re: Audi A3 1.8T AUM 2003 - Fault codes P1297 (17705) & P1137 (17545) #"
Aiden Birley

Peter

Just out of interest, I have been working on a VW 1.4 today and the EVAP valve was clicking at idle, as said I think that is normal on VW

Cheers Aidan

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