I need help identifying some plugs in my car. Vehicle is a 91 CRX HF with a JDM D15b in it. Used to be converted to OBD1, im putting it back to OBD 0 and have no idea what I'm doing. I'm an OBD II dude.

Photo 1 - Back on the firewall, the gray plug is spliced twice so I assume this is an OBD 1 map sensor?
No clue what the square plug is.
Blue plug:
Red plug:


Photo 2 - Under the distributor, three prong plug.
Red plug:


Photo 3: Down by the trans. One pin inside.

another view

 

photo 1:blue plug looks obd 1. and could be map or tps
photo 2:???
photo 3bdo o2 sensor

 

#1...blue..TPS...red...map sensor
#2...EGR valve
#3...o2 sensor

 

The red one it pic one is the plug for the map and an extra vacuum solenoid for the egr valve that HF's have. The rest crx si-r has right.

 

cool, thanks guys and gals. Don't have an EGR in this car, I'm pretty sure I have my TPS sensor hooked up already so I'll have to check the wire colors on that one.

 

pic 1- purge soloniod
pic 2- Was the car and auto maybe
pic 3-o2 sensor

 

No the car was not an auto.