steve77

Hi there,
I just bought recently the VAG software so I can find the problems with my Audi 1998 1.8T Quattro.
Here's the errors :
17544 - Fuel Trim: Bank 1 (Add): System too Lean
P1136 - 35-10 - - - Intermittent
16825 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 35-10 - - - Intermittent

I have no vaccum leak. It have been check with a smoke test. So I think it's either the MAF sensor or the 1st O2 sensor. Before changing one of them ,I'd like to test the MAF sensor. I heard I can do the test with the VAG. So How should I proceed?

Thank you!

Andy@Ross-Tech

<ul><li><a href="http://wiki.ross-tech.com/index.php/Fuel_Trim_Info">http://wiki.ross-tech.com/index.php/Fuel_Trim_Info</a</li></ul>

Poncherelly

STEVE77 : We ran the test and got a max 107 g/s at redline in second gear and the O2 Sensor reading was (Oxigen Sensor Before TWC Learning (Max)Values) 14.8%(O2 sensor Learning Val@Idle) and -6.3% (O2 sensor Learning Val@PartLd)
Also, (Oxigen Seonsor Lambda Control Values) 29.7% (O2 Sens Bef TWC Control) and 0.045 V (O2 Sens Aft TWC Voltage).

Any help would be greatly appreciated.

Thank you