Sensor ??? wtf is it
 

Its a b18b obd2 engine, converted to obd1 in a 95 civic
iv connected my harness which is from a Obd1 B motor , to everything, and i have a few spots on the haness left open, and 2 sensors on the engine open.....
the first one on the engine is the crank position which i don't think i need cause it is read thru the dizzy.
The second is on the intake manifold.... its the one in the pic... do i need that with obd1?? and can i use the vac port on it as an extra line, and just not have the sensor wired?

And the ---- on the harness i don't know, there are two clips that look like the map/ TPs sensor clips, but i don't know where they go...maby this harness was from a Vtack engine.... and there is a Square clip on the harness that sits under the intake many, and i cant for the life of me find where that would go, so any help would be great..

sry bout the second pic :-X

Attachment 27604
Attachment 27605

Re: Sensor ??? wtf is it
 

Purge solenoid. Carry on.

Re: Sensor ??? wtf is it
 

cool, so it isn't important lol ... so i was also wondering...i spliced in to the map sensor clip to wire my Motorola 2.5 can i have both map sensors connected at the same time, or should i just disconnect the stock sensor?

And any ideas on the other clips on the harness..... mainly the square clip under the intake many??

Re: Sensor ??? wtf is it
 

You can't have both plugged in. What plug? Need a pic.

Re: Sensor ??? wtf is it
 

ok the 1st sensor is a Yellow with black stripe and black with blue stripe, and it is pic one

second sensor has 4 wires and is pic 2
3rd pic is both of them, i was just trying to get a better shot on the square one....its dark out now.. :(

Attachment 27595
Attachment 27596
Attachment 27597

Re: Sensor ??? wtf is it
 

The square plug looks like an O2 sensor plug. the other may be for the Obd1 evap purge (?)

Re: Sensor ??? wtf is it
 

The round two pin with a yellow and blue is the IACV.

Better check on what you have plugged in their instead of the right one.


The other, OS sensor.

Re: Sensor ??? wtf is it
 

ok so i put the one in to the iacv and the one that i had in it has a red and yellow, wire..... it reaches to where the purge valve on the D16 motor is, so im a guess that is for the obd1 purge.. but some one correct me if im wrong

and just to make sure i dont need to wire it..

Another Question is about all those ------- Vac lines in the Black charcoal container... I know they run to the break booster and controls for heat and what not????? will boost afect that stuff or do i need to put a one way valve on the line leading to it??? thanks again for the help

Re: Sensor ??? wtf is it
 

Brake booster goes straight to the manifold for predictable vacuum.

Re: Sensor ??? wtf is it
 

You should probably download the service manuals and get the appropriate wire codes.