Obd1 RM climate control in obdii FW - Chevy Impala SS Forum
 
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post #1 of 4 (permalink) Old 08-31-2016, 01:20 PM Thread Starter
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Obd1 RM climate control in obdii FW

I have a Roadmaster hvac climate control unit in my 94 Fleetwood and love it.
But now i want the cc in my 96 obdii Fleetwood.... I'm concerned a obd1 cc from a RM 94 or 95 will not work especially diagnostics.

Any Fleetwood owners out there can attest either way?
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1996 Caprice LT1 DGGM B4U, mostly stock daily driver
1996 Caddy Fleetwood Brougham, wife's new grocery getter
1994 Caddy Fleetwood Brougham, lots of show & a little go
1992 Caprice wagon, L05, posi, factory no wood - wife's grocery getter
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post #2 of 4 (permalink) Old 08-31-2016, 06:42 PM
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Good question. Don't know the answer. RM HVAC is awesome. If it does matter, why not just use one from a OBDII donor car? Shouldn't be much harder to find than from OBDI.

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Last edited by grandpas wagon; 08-31-2016 at 06:46 PM.
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post #3 of 4 (permalink) Old 08-31-2016, 07:15 PM
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You could run it through a few tests and see how it does. Tach, speed, coolant temp etc.

Then disconnect a sensor, get a code, and see if you pull it properly.

Of course you could swap in an OBDII unit. Did your car originally have an OBDII CCM?

I don't even know if the plug would be the same.

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post #4 of 4 (permalink) Old 08-31-2016, 07:26 PM Thread Starter
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I have a lead on an obd1.... Want to see if anyone verified it works or not since this is easiest to get at the moment. Just seeing if anyone knows for sure.

1996 Caprice LT1 DGGM B4U, mostly stock daily driver
1996 Caddy Fleetwood Brougham, wife's new grocery getter
1994 Caddy Fleetwood Brougham, lots of show & a little go
1992 Caprice wagon, L05, posi, factory no wood - wife's grocery getter
B.a.D. Bodies of Chicago, RIP
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