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08 e38 ac wiring

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08 e38 ac wiring

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Jul 12, 2015 | 05:14 AM

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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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Jul 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.

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Jul 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?

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Jul 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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Jul 17, 2015 | 08:08 AM

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Quote:

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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