Im about to buy an 89 prelude from a friend of mine and its missing two sensors he forgot the name of them so I not sure which it is but i do know where there located, one of the sensors is located under the passenger side dash it connects to a 3 prong connector and controls something for either the fuel or something with the engine please dont flame i kinda new to these cars. i figured the other sensor out so all i need is that sensor please let me know some sensors it could be i have been searching on google all night last night couldnt find anything on something that would connect under there.

 

im not sure on this year lude, but you need to try and be more specific...

 

Sorry for not being really specific but i really not that sure what it looks like so I dont really know how to to describe it, I do know he took these sensors off because cause the car was getting to much fuel but he doesnt have the sensors any more and its been so long he cant remember the names. But he said it was a small black sensor it connects under the passenger dash and the connector under the dash has three prongs

 

preludepowerdotcom

 

^^^^ Thanks i just registered on there im going to see if they might can guess it

 

I found out what it was it was the atmosheric pressure sensor some people call it the barometric pressure sensor