A collegue of mine has a GPS unit with him and I finally have a chance to calibrate my TrueSpeed modulator.
Simple task, set cruise to 70 mph and then adjust TrueSpeed until GPS verifies 70 mph.
Cruise don't work and my books are at home. No light nothing. I've just installed my stereo and CB and came off an engine tear down so I got to beleive I fawked something. Can somebody post some possible connection near where I was that might cause the problem. I still have time in the AM to calibrate this bastard.
BTW from what I can tell I'm only off about 1~1.5 mph at 60. This is from calculating the error of the 315 tires and 4.88 gearing and applying it to the tachometer reading. Not to bad.
Simple task, set cruise to 70 mph and then adjust TrueSpeed until GPS verifies 70 mph.
Cruise don't work and my books are at home. No light nothing. I've just installed my stereo and CB and came off an engine tear down so I got to beleive I fawked something. Can somebody post some possible connection near where I was that might cause the problem. I still have time in the AM to calibrate this bastard.
BTW from what I can tell I'm only off about 1~1.5 mph at 60. This is from calculating the error of the 315 tires and 4.88 gearing and applying it to the tachometer reading. Not to bad.