getting error codes P1071

[bobbyvee20]

hey all, i just recently came off a 7 month deployment and had my car put in storage for the time being. i haven't done anything as far as a tune up yet but i just got error code p1071 on my check engine. any tips or help you can give me before i start spending money. i have a 2004 A4 1.8T B6........any help will do, thanks in advance

[walky_talky20]

Are you sure it isn't P0171?

[A4.Rob]

yeah i second that. p1071 isnt a code

[bobbyvee20]

yeah, it's P1071.....i googled it and it said something like system lean bank

[awdjunkies]

Weird code but this is what I found :

http://www.resettools.com/audi_vw_dtc_codes


P1071 Nitrogen oxides (NOX) sensor - heater control - incorrect signal


Interesting because after searching the net, I also read that it can be either having to do with plugs(Which coincides with the fact that the car was stored for so long), or an exhaust leak, even though the code would be different.

[walky_talky20]

yeah, it's P1071.....i googled it and it said something like system lean bank

You are being a little confusing with this answer.

Which is it?

P0171
P1071

The first one is "Fuel Trim,Bank1 System too Lean". That code is almost always caused by a faulty or dirty Mass AirFlow sensor. The second is not a documented Audi code. 1.8T does not have a NOX sensor.

[bigred222]

i have an 03 a4 1.8t and am also getting p1071 just replaced the mass air meter and am still getting a cel for p1071. thanks
~BR