Idle Air Bypass Question

[NY-Bronco]

Im full of questions today. I want to get this efi thing in so badly ;D

I have two types of idle air bypass. One that was attached to the stock throttlebody and the other looks quite different. It was free so Im not going to complain ;D
Which do I use?

or

 

[73azbronco]

not the top one.

 

[NY-Bronco]

Thank you!!!;D

 

[DirtDonk]

I would use the one that came attached to the TB first. Especially if that TB is the correct one for your system. The other "might" work, but the one mounted up looks like the standard one a lot of us use.
The first one in the pic is common also, but not so much on the Mustang TB's. It appears the same as the one on my '95 Mustang V6, but I know there are at least a few that look just like it. I know because I got one once for the Mustang, and it in no way shape or form would function properly. It bolted up just right, it connected just right, but wouldn't idle just right. Got the correct one and, even though they looked the same, it ran much better.

It's so easy to swap them though, that when you get the beast up and running, after a while you might just pop that other one on there to see how it works. While everything is working, it's an easy test. If it works properly too, then you can keep it as a spare. But if it doesn't, you can then find another good home for it, without having to find out the hard way that it's not going to work for you when you really need it.

Paul

 

[NY-Bronco]

Thats good advice. Ill definitely give the other one a try also and see how it runs. Thank you!!