AC Switch

K-Series Programmable ECU installation questions / support issues
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Tonyl
Posts: 7
Joined: Tue Dec 16, 2008 4:57 pm

AC Switch

Post by Tonyl »

I'm currently doing a k20a2 swap in to my mr2 spyder, The instructions i have say that i use the vtech pressure switch (Honda ECU (B9)) reused to be the ac switch.
I've been through the provided K-pro setup 4-5 times, everything looks right and the ac still doesn't work/

If all of the settings are correct and as i understand it it's ground to activate, If i ground pin B9 should the revs of the engine increase ?
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: AC Switch

Post by Spunkster »

What ECU is being used?
Tonyl
Posts: 7
Joined: Tue Dec 16, 2008 4:57 pm

Re: AC Switch

Post by Tonyl »

37820-PRA-E12
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Spunkster
Site Admin
Posts: 22737
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: AC Switch

Post by Spunkster »

Is the AC system properly charged?
Tonyl
Posts: 7
Joined: Tue Dec 16, 2008 4:57 pm

Re: AC Switch

Post by Tonyl »

Yes, It was working perfect before the swap a week ago.
Tonyl
Posts: 7
Joined: Tue Dec 16, 2008 4:57 pm

Re: AC Switch

Post by Tonyl »

As part of the swap i also have to use a muliplexer to convert from toyota to honda, so at the moment i'm just trying to fault find.

If i earth pin B9 should the revs go up ? I'm starting to think the multiplexer might not be switching to earth.
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