Trying to pin my IAB

[gMoneYsH22]

How do find which one is pin A19 on the ecu harness .I'm trying hook my IAB. Somebody help me out...

[accordaffair]

I think you actually need to be looking for pin A17

http://www.cb7tuner.com/vbb/showthread.php?t=5423



Use this as a guide, its for integras

[kidd262]

maybe he asking another IAB.

[accordaffair]

Only one IAB I know of...

[TysCb7]

haha yep pin a17, then just run the other wire to a 12v ignition source.

[gMoneYsH22]

For h22 in accord is the same thing as integra pins????

[gMoneYsH22]

So A17 for pining my iab then so one of the wires i gotta run to a power line and the other wire to pin a17 right...

[Am2PoiNt2]

I thought it was pinA18

[NAiL05]

All OBD1 ecu are basically the same pinout. And just follow that diagram for IAB.

[LinX]

Ok people, people, please listen. This IAB business is seriously getting out of hand. Like stated before by other users there is a black box beneath the manifold that contains a 2 pin connector which activates the vaccum for the butterflies. One wire connects to PIN A17 of either a PT6 or P13 ECU and the other must be connected to a 12V power supply such as the distributors black/yellow wire. If you wired it up correctly the butterlies should be open when the car if off. They will close(because of vaccum) when the key is in the II position and they will open again at around ~4700 RPM from the signal being sent by the ecu. Again, please read before asking questions. If you need more clarification there threads about this believe me because I have personally learned from them.

[accordaffair]

They close when vacuum is present, which is when the engine is running. I think that's what you meant.


Now you know how it feels to answer a question that's been asked many times before.

Soon you will be called an asshole for telling people to search instead of just telling them directly

[TysCb7]

uhhh, the butterflies are open at idle and they close around 5,500 rpm with a p13 ecu.

[LinX]

They close when vacuum is present, which is when the engine is running. I think that's what you meant.


Now you know how it feels to answer a question that's been asked many times before.

Soon you will be called an asshole for telling people to search instead of just telling them directly

I should clarify that I have mine wired to a 12V ignition source so when the key is in II position the butterflies shut and when I turn the engine on nothing happens until I hit the rpm range.

Yeah I hear what you're saying, but since this is beginner forum I tend to not mind. I just don't like to see three different posts all related to the same thing in a short amount of time.

[LinX]

uhhh, the butterflies are open at idle and they close around 5,500 rpm with a p13 ecu.

The rpm range might be different for p13 but I still don't understand your logic. How is the butterfly operation any different from a pt6 other than the rpm at which the butterflies open and vacuum disengages?

[NAiL05]

uhhh, the butterflies are open at idle and they close around 5,500 rpm with a p13 ecu.

No. The butterflies are closed at idle. They open at whatever rpm vtec engages...You can even do this take off the vacuum source the IAB will stay open put it back on it will close unless WOT. Why would honda decrease the airflow going into the cylinders when you got the pedal to the floor.