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Registered
Join Date: Jan 2008
Location: Cork, Ireland
Posts: 30
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964 Cab - roof operation while eng. running
Hi there,
i'm sure everyone here has had probs with the 964 draining the battery. I was thinking of rewiring the roof controls so it is active while the engine is running thus not draining my battery. Could this damage the motors or control unit etc. Has anybody done this before? Thanks |
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02-13-2008, 07:55 AM
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Registered
Join Date: Dec 2005
Location: Altamonte Springs, Florida
Posts: 33
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mine does it but it was already that way when I bought it.
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Jim 91 964 C2 TIP 03 996TT x-50 |
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02-14-2008, 11:28 AM
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Registered
Join Date: Mar 2005
Location: Pinehurst NC
Posts: 222
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your top shouldn't take that long to open or close......if it is draining the battery while you're doing this, you've got other problems....i've got 2 '92 C2 cabs and have never had this problem
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02-15-2008, 07:03 AM
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Registered
Join Date: Jan 2008
Location: Cork, Ireland
Posts: 30
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Well its more the fact that it wouldnt be taking power if the car was running also if your driving along then decide to put roof down u have to pull over cut car drop roof then start it all up again - would be easier just to pull in and drop it.
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02-21-2008, 03:30 AM
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Registered
Join Date: Mar 2005
Location: Pinehurst NC
Posts: 222
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oh ok-- i think i've seen some adds in Excellence, selling a chip for top operation up to 15 MPH
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02-21-2008, 04:18 AM
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Join Date: Jul 2006
Location: Seattle
Posts: 73
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Got any info on this chip? I would like that ability.
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1992 Carerra C4 |
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02-23-2008, 09:04 AM
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New Porsche Owner (964)
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I second that - the desire for the feature and related info!
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02-23-2008, 05:17 PM
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Registered
Join Date: Dec 2005
Location: Altamonte Springs, Florida
Posts: 33
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Its not a chip. Its has something to do with rewiring the control module. I remember a couple threads on it on Rennlist a couple years or so ago. It is a nice mod to have especially if sitting in traffic and it starts to rain. Mine will work until about 15 mph with the emergency brake on 1 click.
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Jim 91 964 C2 TIP 03 996TT x-50 |
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02-24-2008, 07:39 PM
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Registered
Join Date: Aug 2004
Location: New Brunswick, Canada
Posts: 5,472
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Quote:
If you pull the passenger fottwell cover and look at the cab top "brain", there are 4 plugs:  Plug #2 has the feeds for the left locking motor, as well as the line that runs to the emergency brake switch:  If I remember correctly, "Hd" gets a ground when the emergency brake is pulled. If you ran that line straight to a ground instead of through the emergency brake switch, you should be good to go. That's the way I remeber it anyway, more info here: Cab Power Top: electrical testing DIY
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Jake Often wrong, but never in doubt. '81 911 euro SC (bits & pieces) '03 Carrera 4s '97 LX450 / '85 LeCar / '88 Iltis + a whole bunch of boats |
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02-27-2008, 06:04 AM
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