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08 e38 ac wiring

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Old 07-12-2015, 05:14 AM
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Default 08 e38 ac wiring

Getting closer to finishing the harness on my ly6 94 fleetwood swap. Searching for hours, I am more confused than ever on wiring the ac. Compressor is a relocated sanden 508.

I am using a c6 pwm fan controller, so I think I have the fan part. The high pressure sensor wiring plugs right into the fleetwood sensor on the high pressure line.

Does the ac request from hvac control go through pressure cycling switch on drier and then to compressor relay? Any way to wire it into pcm for idle bump?

Here is the 94 fleetwood diagram. Thanks for any help.
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Old 07-17-2015, 07:04 AM
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The E38 ECM does not have a hard wired provision for AC request as that was handled on the CAN Bus.
Old 07-17-2015, 07:24 AM
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Yeah, I have since figured that out, thanks.

So I would take the dk blu circuit 214 from cycling switch and tie that into dk grn/wh 459 at the relay to bypass the pcm?
Old 07-17-2015, 07:51 AM
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Yes. That's what I did in my 95 Roadmaster Wagon. Works perfectly. Good to see someone else giving a mid 90's full size a new lease on life.
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Old 07-17-2015, 08:08 AM
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Originally Posted by Docked Wage
Yes. That's what I did in my 95 Roadmaster Wagon. Works perfectly. Good to see someone else giving a mid 90's full size a new lease on life.
Thanks!! Car looks great!!



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