TheRecklessEngineer Posted November 16, 2006 Share Posted November 16, 2006 I've been thinking of sticking cruise control in my 300 tdi disco for a while now. I've just come across most of the kit for cruise control on a '93 rangie... I like a good challenge, so I'm up for trying to make this fit, but what sends the ECU a speed signal? Is it taken from the ABS, or something on the speedo cable? Should there be some sort of valve system to send variable amounts of vacuum to the diaphragm actuator thingy??? Anyone got any wiring diagrams/technical details for this system? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 16, 2006 Share Posted November 16, 2006 I have a complete TDI cruise control system for sale - yours for £20: Should hold a steady 60mph given a following wind Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted November 16, 2006 Author Share Posted November 16, 2006 I'm sorry fridge, but hows your truck coming along? :) Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 16, 2006 Share Posted November 16, 2006 Very well thanks It's funny, since I moved it I haven't had to look for a grinder only to find it in an oily puddle Quote Link to comment Share on other sites More sharing options...
siearl Posted November 16, 2006 Share Posted November 16, 2006 Can't remember what site it was on or it might have been USA eblag but there is a nice easy instal kit that is about $60. If i can find the site i will post it Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted November 16, 2006 Author Share Posted November 16, 2006 Yes, well at least it always had a good disc on the end The only cheap kits I've found are generally just a hand throttle. The ones with a controller are about £300+ and even then they don't look particularly good. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 16, 2006 Share Posted November 16, 2006 Why not do what Jez did and fit an infinitely variable or selectable 7-stage air cooled cruise control actuator... ...off an old bike Quote Link to comment Share on other sites More sharing options...
geoffbeaumont Posted November 16, 2006 Share Posted November 16, 2006 I've been thinking of sticking cruise control in my 300 tdi disco for a while now.I've just come across most of the kit for cruise control on a '93 rangie... I like a good challenge, so I'm up for trying to make this fit, but what sends the ECU a speed signal? Is it taken from the ABS, or something on the speedo cable? Should there be some sort of valve system to send variable amounts of vacuum to the diaphragm actuator thingy??? Anyone got any wiring diagrams/technical details for this system? It uses the signal from the speed transducer in the transfer box (the one that drives the speedo). No idea if it's the same as the one in a 300Tdi disco. It wouldn't be my first choice - the one on my '93 rangie worked intermittently when I first had it and now doesn't work at all (despite passing the workshop diagnostics - so it's probably a dodgy ECU). I've seen quite a few questions about similar problems on forums. Quote Link to comment Share on other sites More sharing options...
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