91 civic dx hatch...
put a p10 im on it from a 92 civic
there are three sensores on it
one on top of the throttle body it is the map and is a three prong plug.
one behind the throttle body i believe it is the tps also three prongs
and one behind the intake manifold not sure what tht is but is a two prong.
iv got the plugs for the the 2 prong one on the back of the manifold and the tps which leaves the map sensor but there is only a two prong plug left but it dosent fit on the map cuz it is three prong. can someone please tell me what im doing wrong

 

oo and i also converted to obd1

 

The map sensor on a 91 civic is on the firewall unlike 92-00 cars that have em on the throttle body
Either run wires to the sensor on the throttle body or user the stock on the firewall (aslong as it has a vacuum source connected to it either should work fine

 

The 92~93 D15B7 have a firewall mounted MAP.
94~95 use a TB mounted MAP.

You have something wrong here.

Stock 91 DX MAP has 3 wires.

green/white is C11
white is C14
yellow/red is C15