How to make AC work with your swap, aka: Need help with AC wiring thread Options

[lagos]

ok... so my AC hasnt worked since the swap and i figure now is a good time to wire that crap up. so i have my harness apart and im trying to look at the wiring diagrams to figure out a few things. seems like i need some help.

"ac amplifier" in the diagrams means the main AC compressor, correct?

on it, is a plug called A8 (looking at the 5sfe diagrams). the harness goes from there to a plug called IM1 and then 3 wires go to the ECU's 1st plug. where is IM1 located ? is it the white, 5 wire plug that goes from the 3s hanress, and plugs in right behind the glove box?

This post has been edited by lagos: Jul 29, 2006 - 9:02 PM

[lagos]

The whole purpose of the idle up VSV is to stabilize the idle when the clutch is engaged and there is an extra load on the engine. As you already pointed out, having the VSV engaged whenever the AC button is pressed will still cause a fluctuation in idle since the clutch is not constantly engaged when the AC button is pushed. A single relay triggered by the IDL signal to engage the VSV which is also powered by the AC magnetic clutch wire is probably you're best bet.

yeah, your right. that is the best way to do it.

im going to try a really simple idle up, first and see how i like it. the idle only really dips down by about 50rpm when the AC kicks on. so i dont think ill have to go through taping into the tps idle signall with a relay, to get it to do what i want. i also have feeling that even if you add the relay, its going to take second for the tps to send out and idle signal ,and the relay to click on, and it will never be a super smooth and perfect setup. even on a bone stock car, the idle is never 100% pefrect when the ac is on.