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Join Date: Nov 2007
Posts: 41
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82SC Cruise Control consistently engages 10mph too low.
I finally had the time to work on my cruise control and found that the only reason it was not working at all was the fuse and power supply to the fuse. I got that fixed and cruise controll now works, sort of. Every time i set a speed and lift my foot of the pedal the car slows down 10mph before the cruise control takes over and maintains that speed.
Has anybody had this on their cruise control? Is there a simple fix? Thanks Frank
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- Piaggio PX200 E '89 - Piaggio V50SR '76 - Triumph Spitfire 1500 '80 - Mazda Miata (MX-5) 1.8 '99 - Porsche 911 SC Targa '82 |
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02-11-2008, 03:32 PM
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Get off my lawn!
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The cruise control on my 85 has always been less than perfect. I have to accerlate to 5 MPH above the speed I really want and then set it. After 30 minutes or so it will be going 5 MPH slower. I asked several local experts and they all had the standard response "they all do that." I would love to fine a real cure for the problem. There has to be some fix besides upgrading to a 993
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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02-11-2008, 06:18 PM
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I know a little bit more now. I swaped the control unit with the control unit of another 83 SC and now it would only set 3mph slower, so the control unit is the source of my error.
Anybody have an idea how the control unit can be fixed? 10mph slower is just too much. Frank
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- Piaggio PX200 E '89 - Piaggio V50SR '76 - Triumph Spitfire 1500 '80 - Mazda Miata (MX-5) 1.8 '99 - Porsche 911 SC Targa '82 |
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02-16-2008, 11:07 AM
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My 89 takes over almost instantly,..no noticed drop in set mileage point..
..someone should chime in,...the ones that may have gutted the box,..I thought there sone schematics f loating around here? Best,
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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02-16-2008, 12:43 PM
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Join Date: Nov 2003
Location: BABYLON,N.Y.
Posts: 1,048
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C .control
I Think The Cable Is Adjustable At The Throtte End[black Plastic Nut On Cable Right At Throttle]to Correct For Speed Calibration
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02-16-2008, 01:16 PM
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Registered
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Posts: 41
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Quote:
Frank
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- Piaggio PX200 E '89 - Piaggio V50SR '76 - Triumph Spitfire 1500 '80 - Mazda Miata (MX-5) 1.8 '99 - Porsche 911 SC Targa '82 |
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02-16-2008, 01:32 PM
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Join Date: Dec 1969
Location: Lac La Biche, Alberta, Canada
Posts: 951
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Same boat. See attached thread. If anyone figures it out, I'm interested.
Cruise Control Brain BTW, in response to Doyle, I think the 89 uses the more modern motor driven cruise instead of the vacuum unit like ours. Tim
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1986 911 Cab 2008 Audi A6 |
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02-16-2008, 02:54 PM
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Carrera
