Car slow then fast

[stu126]

Hi all my car is going slow then goes fast, had engine light on and shows limp mode light and when I checked the faults I had p101. Have shown bettor below, if anyone can help me I would appreciate any help, would I need a new maf sensor I have a 2.0tdi 

[Codiak]

I had similar on an old Fiesta, you could try cleaning the sensor with electrical contact cleaner first.

It didn't look it but once removed and sprayed the amount of dirt on the ground was something!

just be sure to let it dry out before putting it back in

 

[stu126]

Thanks would it be wiring from maf sensor 

[Codiak]

I aint seen the sensor on an A3 yet as I only got mine at the weekend.

 

it should be somewhere between your intake and the air filter box - on my fiesta I took the part out and cleaned it. plenty videos on youtube tho on how to check your MAF sensor to rule it out.