System too Lean

[Munky]

Hello.., i've just run VAG-COM *for the first time* on my Ibiza Cupra after the management light came on last week.

This was what i found..

1 Fault Found:
17536 - Fuel Trim: Bank 1 (Mult): System too Lean

I cleared the code and closed VAG-COM etc.., started the car and it was having real problems not cutting out so i turned the car off as soon as possible and ran another scan.. No errors and the management light is still out

Started the car again and all was fine untill after 3/4mins of it running it felt a lil lumpy for a few seconds then went away.., still no engine management light.

Might be a silly question but am i safe driving it? I don't want to drive it then find out it's not getting enough fuel or something silly and end up killing the car..

 

[Big_daddy]

Try doing some logs to see what casuing it, eg maf, lambda

 

[Munky]

I have 4 faults now

4 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 - -
16685 - Shareware Version. To Decode all DTCs
P0301 - 35-00 - Please Register/Activate
16687 - Shareware Version. To Decode all DTCs
P0303 - 35-00 - Please Register/Activate
17658 - Fuel Level too Low
P1250 - 35-00 - -

 

[Big_daddy]

1st off you have some misfire, you may want to monitor which cylinder its misfiring, 1,2,3 or 4.

You have the shareversion, you would need to get the full version. Try measuring the mass meter and lambda and boost . After you sorted the misfire

003 + 020
115 + 031
118 + 032

 

[Romeoisgraham]

Any chance you have a atmospheric dump valve?

possible injector blockage.

 

[thewiizard]

Running Lean will be the MAF sensor. Unless of course your o2 readings are 0 then id say lamda sensor. had the exact same error with mine, replaced the MAF and now I have boost

 

[Munky]

Been talking to Kevin at JabbaSport and he seems to think it's the coilpack thats gone and also the MAF could be on it's way out..

I've cleared the errors and it's driving/boosting fine now.., im gonna book it into Jabba for a good service and hopefully they'll get to the bottom of it

Thanks for the help fella's..

 

[Theresias]

Worth reading...

http://wiki.ross-tech.com/index.php/Fuel_Trim_Info

P.S.: You can't check all necessary points here with the shareware version here, license required.