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So I thought I must have dislodged a light bulb or something when, 3 years ago, I put a tach in my 87 244 (5-spd) and the upshift light no longer worked.
Did the same thing this week in my "new" 92 (also 5-spd). Hmm... new tach, works fine, but no more upshift light. Anyone shed some light on that?
Also, I was curious how it works- seems to observe a tach pulse in some way, and compare that to vehicle speed. I can make it go on and off by coasting at 60 in neutral and playing with the throttle. Above about 2500rpm, it'll turn on. The 90 740 has both an upshift light and a tach, so I was wondering why the 240 can't have both, or maybe I broke something both times! Could happen, you know.
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Rob Bareiss, New London CT ::: 92 244-M47-207K ::: 90 745GL-M47-268K ::: 88 245DL-AW70-230K ::: 88 244 SOLD! 87 244 SOLD! Still looking for a bright red or black 244 with sunroof...
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