error code p0170 help...

[cameron_1292]

On my way to work today my cel came on. I ran it and it says bank 1 p0170 fuel trim. I've gotten mixed answers when googleing it on my lunch break so has anyone else gotten this?

[Romant]

i have the same code...its MASS sensor i clean it and cel code gone for a while then its back then i clean again and its gone again..but i dont know if you have same prob..

[cameron_1292]

i have the same code...its MASS sensor i clean it and cel code gone for a while then its back then i clean again and its gone again..but i dont know if you have same prob..

Sounds like it. From what I've read online the 2 issues it usually is with Mercedes and this code are the maf and the fuel pump and mp is fine so I'm assuming its the maf. Some say cleaning it fixes it some say it only prolongs it but I'm hoping it just needs a clean beciae a maf sensor is expensive