94 z28 A4

My ses light is on and the map sensor is out and i forgot what it is and what it is for. Thanks

buffman

iTrader: (9)

it's the black little box thing on the passenger side of the intake towards the TB. it has a green 3 wire connector. Two screws hold it in the manifold

OutlawZ

iTrader: (4)

It's your Manifold Absolute Pressure sensor... It measures pressure inside the intake usually in kPa and converts it for your PCM to use to measure air volume I believe for use in it's fueling algorithms.... More MAP voltage equals higher engine load.... 1 bar MAP sensors for NA engines and 2 bar or 3 bar for boosted motors since boost pressure goes higher than a standard 1 bar map sensor will read....

If it was out your motor wouldn't be able to accurately measure air volume and engine load and wouldn't do a great job in fueling accurately...

daniel6718

iTrader: (36)

i have a brand new one ill sell youfor 10 bux
daniel