Schultzie

What is the proper wiring for this swap. Can anyone provide any links? I have seen a few helpful threads like:
https://honda-tech.com/forums/showth...ight=b18b+swap
https://honda-tech.com/forums/showth...8b+swap&page=6

I was wondering if anyone might be able to point me to a faq or walkthrough of wiring a ls to a 97 ex harness. I will need to extend iacv and o2 sensors and what about the crank sensor?Thank you for the help in advance guys.

HondaPartsHero

-Extend primary O2 to LS manifold location.
-EX CKF is 3 wire LS is two wire:
EX
White to white/red-------- CKFM pin on PCM , [ECU/ECM/PCM]
Light blue to blue/orange--CKFP pin on PCM
Black to brown/black------- chassis ground
LS
White to red/white---------CKFM pin on ECM [ECU/ECM/PCM]
Blue to blue/red------------CKFP pin on ECM
Black on EX is ground, connect the similar wires, ground is not needed
-On the LS the IAT is a different plug so either get a round style plug or put the EX IAT into your intake arm

Schultzie

can anyone elaborate on this?

White to white/red-------- CKFM pin on PCM , [ECU/ECM/PCM]
Light blue to blue/orange--CKFP pin on PCM
Black to brown/black------- chassis ground
LS
White to red/white---------CKFM pin on ECM [ECU/ECM/PCM]
Blue to blue/red------------CKFP pin on ECM

Schultzie

CKFM pin on PCM , [ECU/ECM/PCM] are these location on ecu?

HondaPartsHero

I'm just saying two wires should be similar in color and the third not, that should be the ground. Don't worry about the pin locations at the ECU just focus at the plug. I'm trying to find a diagram to show it better.

Schultzie

Thanks a bunch for your help !