Question about two wiring harness connectors/gauges

[That Guy]

Hello. I am finishing a D16z6 swap and found two of the connectors on my OBD1 wiring harness broke and I am wondering what they do. I plan to replace them asap but want to know:

1- What do they do exactly?
2- Can I safely drive the car without them connected until I find replacements?


I have circled the two connectors I am talking about. They should connect to the block directly underneath the distributor if I circled the right ones. One is a 2 pin connector and the other is a female type that slides onto a metal nub.

(That is not my harness. That picture came from norcalcrx.org and is the best picture I could find. I just circled the connectors in question. Thanks to them for the pic)


Sub Question:


When I start the car the engine feels like it's idling fine but the tach shows 1500rpm and the speedometer shows I'm going 15mph (even though I am stationary). Any idea what would cause this? Everything worked perfectly before the swap and I even took the complete speed sensor and connector from the previous transmission.


Major thanks to anyone who helps. I'm hoping to be driving this car tonight or tomorrow if possible.

'

BTW, I am NOT recieving a CEL.

 

[boostin4fun]

The black one should be for the coolant temp sensor, which is usually just a little metal dowel looking thing sticking out of the head. That plug just slides onto it. Not sure what the other plug is, but usually in that area of the harness it would be a plug for the vtec solenoid or vtec pressure switch?

 

[hondasniper]

the other one should be thermosensor (the one two wire plug next to the temp gauge sending unit). Make sure that you have good grounds. If it were to be a vtec solenoid or pressure switch, you would have a cel for it if it were not plugged in.