just as the title says...

 

On what car?

On a S4 NA, it's located on the passenger's side front shock tower. Little rectangular box with a vacuum line fed to it and wires coming off it.

-=Russ=-

 

dont think we have one.

 

sure we have one! its our boost sensor!

 

i had a feeling. its the cute little box right in front of the pass strut tower (right?)

 

ok. i found that. right in front of my face. is there a vacumm switch for the MAP sensor. i have a GTU at a mechanic and he said its missing that. i have a parts car SE at home. will that have a vacumm switch because i could'nt find one. there both 88.

 

What's a vacuum switch?

 

hahaha ^_^

 

And its not a MAP on 2nd gen RX-7s, its a MAF..


Unless you have a standalone

 

MAP sensor is the technical name for what is sometimes misleadingly called a boost sensor (it measures vacuum too). MAP stands for manifold absolute pressure. While the airflow meter is used as the primary engine load sensor for fuel calcs, the MAP sensor is also used by the ECU for load info.

The MAP sensor is mounted on the front side of the right strut tower. The vacuum switch refered to above is only fitted to auto, and is mounted next to the MAP sensor. It's used to operate the torque convertor lock-up.

 

Thanks, NZ. Never having an automatic FC, I was unaware of the switch or what it was for.

 

ok, thanks guys.