just upgarded my turbo to a Ko4 on an A4 quattro. ever since i did that & the chip & injectors the MAF keep shutting down the car. Any ideas>

 

Bad sensor ? Start the car let it idle tap the sensor, if the engine responds with you tapping on the sensor, replace it.

 

replaced the senor & wires & it still does it.

 

Wilkommen to the forums!

could be an issue with the tune? IIRC some tunes with the upgraded injectors require either an upgraded MAF or a file specific to the MAF you have (or I could be remembering incorrectly)

try posting in the A4 section, you will get more views and possibly better answers

 

found the problem its another damn hose. it has a huge hole in it.

 

or maybe you have a huge hole in your damn hose?

 

i bought the thing used & its been one problem after another