I have a 97 del sol vtec. i bought it as a theft recovery, and then i bought a swap out of a 99 civic SI. no harness tho. yesterday i pulled a harness from a 95 dx (obd-1) i then converted the dizzy harness, fuel injector clips, alternator harness to the obd2 style. and am going to wire in vtec and knock sensor tomorrow. however, i have a few loose ends to tie up first. btw the harness is from a 95 auto dx. any input is appreciate. im trying to figure out what needs to be extended to what. and what i need, the wires that are cut in one of the photos were like that when i get the harness, and I THINK its for the map sensor, if it is tho, then i have a 3 wire map and thats only a 2 wire, so id need to rewire that from the ecu too then?
SORRY- i mean pretty sure this is a coolant sensor NOT IAT. the IAT sensor should be the white plug in the last picture.





and actually now that i think about it, that black sensor IS the knock sensor, my bad. I'm sorry, just trying to figure this out haha

 

bump. need help with this, take a pic and lets hear your input please, thanks

 

are you kidding? no one knows what any of those are?

 

Top photo,

Left wires look like IAT, right connector looks like O2 sensor.

2nd photo , that does indeed look like coolant temp sensor, if you bridge the wires and the fan comes on, that goes to the Thermo switch on or around where the cooland lines go in... "NOT ON THE HEAD" somewhere else.

3rd photo

the single wire is indeed Vtec, the lopped off wires are indeed vtec Pressure sensor "VTP" on obd1 pinouts. the other electrical thing is most likely ECT sensor goes to ecu it looks like its 2 wire.. My h22 has an additional single wire one that is connected to the dash gauge cluster that shows coolant temp, resistance changes vs temp "this value is not obtained from the ecu"

4th photo down, Im guessing the top sensor is Knock sensor, and the bottom sensor is OILPRESSURE SENSOR, one wire goes to ground the other goes directly to the oil light on the dash, you can take this out apply pressure to it 1-2 lbs should break the internal circuit you can check this with a volt meter.

the last and bottom photo, those wires remind me of something that goes to a solenoid evap perhaps or some other non useful thing that you don't need to re-wire..


Hope that helps.

----EDIT Get yourself a printout of obd1 pinouts and most of the black wires are all grounds you will find that a couple sensors arnt grounded but come from the ecu grounds and are suplied with voltage that comes directly from the ecu, Map sensor, IAT, ECT.....EGR if you have it... I think thats it.... Volt meter and obd1 pinouts and lots of notepaper and nice little peices of masking tape that tell you what things are are also uber helpful good luck


My mistake, same rules apply for pinouts just on obd2 not 1 as I previously stated.