air con install

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dagsy
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air con install

Post by dagsy »

am installing an air con system onto a non air con ej22. have all the parts fom condenser to evaporator.
how will this effect the ecu as far as idling issues when the compressor kicks in?
is there anyone out there who has already done this and knows any hints, tips, suggestions?
cheers
vrg3
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Post by vrg3 »

How are you going to do the wiring?

On cars equipped from the factory with air conditioning, the ECU is in charge of switching the compressor on when the switch is pressed. The air conditioning switches on the dash tell the ECU to turn on the air conditioning, and then the ECU controls the compressor clutch through the A/C cut control relay. So, it knows when the A/C is on and adjusts IAC valve duty accordingly. It also cuts the compressor off when you accelerate hard.

I doubt cars without A/C were equipped with different ECUs, so I'd suggest you try to mimic this wiring.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
Legacy777
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Post by Legacy777 »

that's going to be a lot of work....especially in the wiring detail.

let's hope the wiring is in place and you can just hook connectors up. If not, you'll have to do a lot of wiring.
Josh

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HomeSlice
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Post by HomeSlice »

wow good luck m8 here is some tech books
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MY93BC Legacy Sonora Sand---> black plasti-dip?
MY93GC Impreza Amethyst--> Glacier/aspen/pd White
93BC"edm" 93GC 90BC R.I.P.
dagsy
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Joined: Tue May 20, 2003 11:04 pm
Location: brisbane, australia

Post by dagsy »

hey josh,
do you (or anyone) know of any good wiring diagrams to do this job. i have one from the workshop manual, are there any others.
crazy i know, but if all goes well it is going to cost under half of what the shop quoted to do.
cheers
dagsy
First Gear
Posts: 55
Joined: Tue May 20, 2003 11:04 pm
Location: brisbane, australia

Post by dagsy »

found them, let the fun begin
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