I have a 92 gs-r that I obtained without an engine or main harness, so to restore this car I went to a local honda junkyard and bought a 92-93 LS main harness which is already installed. I have a b18c5 engine from my previous DA that I pulled out after I wrecked it. At the time I didn’t think to keep the harness now I have bought a harness from ebay which the seller stated would work on a 92-95 integra. I know 92-93 and 94-95 are different but he stated it came from off a b18a1 so I decided to buy it, upon installing it I have a couple plugs extra. One on passenger side where main and engine harness connect and one on drivers side. To be exact the engine harness has 3 plugs on each side while the main harness only has 2. The passenger side extra plug is the pic with red and green wires shown below while the drivers side is all yellow. Another problem i have encountered is an extra green plug near the alternator that won’t go on the brown sensor shown. Any help with these is greatly appreciated. If it’s a 94-95 harness I’ll just ship it back and buy another one. Thanks guys
Pic 2 looks like the plug for an automatic tranny vehicle (solid green wire & red wire provide signals for the auto tranny solenoids). Pic 3 plug (yellow/black wires) provides positive voltage to the injectors and two other sensors on the engine. You need it. So it looks like your harness will work, but they sold you a harness from an automatic vehicle and you will have an extra plug just hanging around.
ok so it remains unplugged…in reference to the auto plug do i just leave it unplugged to along with the green one or do i need to wire it up to the brown sensor
Leave the auto plug hanging, there is nothing for you to hook it up to. Keep in mind that you won’t have reverse lights unless you modify that harness. Autos have the reverse switch on the shifter lever and manuals have it on the tranny. That green plug looks like water temp and the brown sensor on the engine looks like oil pressure. Do you have anything hooked up to the sensor on the thermostat housing?
Looking at it more, plus the location, that brown plug on the block looks like a knock sensor. Take a look at it and see how many prongs it has. Knock only has one, temp has two. If it is knock, that ls harness won’t have a plug for it (ls engines don’t have knock sensors, only vtecs). And that ls green plug won’t hook up to anything on the gsr. That green plug looks like the one that switches the a/c fan on when the car is off and oil temp is above a certain degree (ls with a/c only?).
i have removed the ac, and it has two prongs in the brown sensor, i think the knock is below it…the type r engine should have a knock sensor to run properly correct?
The top plug on the block is the knock sensor. Most JDM Vtec engines don’t use a knock sensor. I’ve built/installed 3 vtec engines, no knock sensor, no problems. The only other plug you should have on that side is the oil pressure switch. You won’t have a hook-up for that green plug. So you have a B18C5 with an auto ls engine harness and a manual main harness.
You are going to have to modify (reverse lights, add vtec wire) that engine harness to make everything work properly. And if the main harness isn’t a vtec, you will have to run a vtec wire from the ecu to the vtec solenoid. And as long as those two plugs hanging around don’t bother you, then it will work fine for your setup.
cool deal, thanks man. I think I’m going to get the rywire harness so i don’t have to fool with much wiring. Then I’ll figure out how to make the back up lights work.
Rywire is top notch stuff, if it is in your budget (mucho $$$$). I don’t have the budget for rywire, so I modify harnesses myself (nothing even close to rywire stuff). Which at times can be quite frustrating. Rywire should come with reverse light wiring and everything else you need once you tell them your setup.
so i have done some more research and I’m finding that for the injector voltage plug i need the cap for it for it to work right. by chance do you know anyone that has one?
You’re are going to have to go picking at a local pick and pull or return that engine harness to whoever sold it to you and get your money back. The good thing is that plug can be found on any OBD1 Honda or Acura engine harness. But the seller should have made sure the plug was there or at least in good condition, without it your engine won’t run.
Yes. The termination end plug for the injector connector just does that same exact thing: connects all the wires going into the connector together. Just kinda ghetto that way. Unless you’re doing a tuck, then it’d be a way to save some space normally taken up by the connector.
