How to hook up IAB's Properly

[dj_ender]

What manual are you using? If it's Chilton/Haynes that explains it....

[Mishakol129]

What manual are you using? If it's Chilton/Haynes that explains it....

91 Accord Honda manual.

[dj_ender]

Hmm, it must have all sub models included because in 91 only the SE (IIRC) had the A6, the only engine that would use that pin out.

[Mishakol129]

Hmm, it must have all sub models included because in 91 only the SE (IIRC) had the A6, the only engine that would use that pin out.

Why does my harness have the wire then that's strange. I don't see anything on my harness that indicated an A6 harness, its internal coil.

The diagram shows A17 pin going to the "bypass control solenoid". That's IAB's right? There is no IAB plug on my harness, so why does my ecu plug have the IAB wire? So odd.





Maybe the previous owner/owners messed with it, although there are no signs that I am aware of that a harness swap ever occurred. If so why are all the A1 parts are there; the manifold, block, head, etc. Makes no sense.

Anyways I think my problem with the IABs not working may be something very simple. I took power from the fusebox just like you did and I grounded it with the A17 ecu pin. I verified that power was there but I could not get them to ground so they would close at idle.

[Jarrett]

The 1991 EX wagon also had the F22A6.

[Mishakol129]

I bet you it was the factory that messed up the wiring. The the car is an LX and an A1, nothing on it inside the engine bay shows any signs of having A6 parts. Just that ECU plug does. I wanna find out where the other end of that pink/blue wire is though and do some more inspection maybe I overlooked something.

[dj_ender]

The 1991 EX wagon also had the F22A6.

Figured I remembered incorrectly, thanks for clearing that up.

I bet you it was the factory that messed up the wiring. The the car is an LX and an A1, nothing on it inside the engine bay shows any signs of having A6 parts. Just that ECU plug does. I wanna find out where the other end of that pink/blue wire is though and do some more inspection maybe I overlooked something.

Are you testing the solenoid while the car is running? Because the butterflies won't open unless there's vacuum. The wire will end at the harness connector on the passenger shock tower.

[Mishakol129]

Figured I remembered incorrectly, thanks for clearing that up.



Are you testing the solenoid while the car is running? Because the butterflies won't open unless there's vacuum. The wire will end at the harness connector on the passenger shock tower.

Alright thnks I did do these things with the car running and with vacuum. After I wired the A17 pin as I put the wire to ground the iabs would close but it still wouldn't work. Then when I re-wired the A17 pin (cause I thought I had a faulty ground to the ECU there) the iabs won't close, even when I put a ground on the engine. That's about all I can tell you. When I say "rewired" I mean I replaced the A17 ECU pin... However I did not solder the ground wire or the power wire going to the ECU plug, I just twisted them together and wrapped them with tape. There was power though I know for sure. Should I go back and solder them and re test it?

[dj_ender]

And just to be clear, the solenoid doesn't physically open or close the butterflies. It only controls the vacuum supply to the butterfly diaphragm, on or off.

[Mishakol129]

And just to be clear, the solenoid doesn't physically open or close the butterflies. It only controls the vacuum supply to the butterfly diaphragm, on or off.

I know, thanks for the input.

[dj_ender]

Really? I'm trying to help you, and you post a stupid fucking meme.... Can't believe he unbanned you.

[Mishakol129]

Really? I'm trying to help you, and you post a stupid fucking meme.... Can't believe he unbanned you.

I wasn't trying to be rude, I'm sorry if I seemed to be. It was just a joke.
Its gone now. It was stupid, you're right.