maftpro and HAC signal

atlpd3147

atlpd3147

kool member
Nov 26, 2005
485
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Dacula,GA
Is it ok not to use the maftpro harness wire dedicated to tapping into the hac signal and just keep the stock hac sensor in place? Im just wondering?
 
atlpd3147

atlpd3147

kool member
Nov 26, 2005
485
0
16
Dacula,GA
Ok kool. Thanks for the quick reply. Just to safe there won't be any reduced performance from the maftpro if one keeps the stock setup?
 
chriso

chriso

Supranian
Apr 5, 2005
917
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0
Bay Area, CA
atlpd3147 said:
Is it ok not to use the maftpro harness wire dedicated to tapping into the hac signal and just keep the stock hac sensor in place? Im just wondering?
Click to expand...
What about on 89+ cars where the HAC is built into the ECU? Is there a link to a description on how to do the mod?
 
atlpd3147

atlpd3147

kool member
Nov 26, 2005
485
0
16
Dacula,GA
Yes there is a write up on how to do the 89+ hac wiring with the maftpro. Im not sure where the post is but im sure a quick search will net some results. Good luck..
 
chriso

chriso

Supranian
Apr 5, 2005
917
0
0
Bay Area, CA
atlpd3147 said:
Yes there is a write up on how to do the 89+ hac wiring with the maftpro. Im not sure where the post is but im sure a quick search will net some results. Good luck..
Click to expand...
Search is bringing up no results for any write up.
 
CPT Furious

CPT Furious

Now MAJ FURY!
Mar 30, 2005
607
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0
KDOV
I think I might be a fool, but I pulled out my ECU and there are no wires attached. Where are the wires for the HAC? I realize mine must be internal, but how do I attach the MAFT Pro to it?
 
D

drjonez

Supramania Contributor
Mar 31, 2005
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the motor city
www.4cefed.com
'89+ ECUs must be hand modified if you want to break out the HAC signal. at some point i'll put together a nice writeup, but it's definitely not for the faint of heart/electronically declined.
 
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