I think I would be looking for the signal grounds those signals have in common.
Bill Cardell TurboDog's Dad Flyin' Miata <http://www.flyinmiata.com/> HELP FLYIN' MIATA GO TO TARGA NEWFOUNDLAND! <http://www.flyinmiata.com/projects/targa/index.php> Targa Miata Facebook page <http://www.facebook.com/pages/Flyin-Miatas-at-Targa-Newfoundland/144488 045605566> FMWestfield <http://www.fmwestfield.com/> Sales 1-800-359-6957 Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Adam Wolf Sent: Friday, June 10, 2011 12:09 PM To: Miata Power List Subject: Link sensor readings erratic I've been having a problem with my Link (an Obiwan installed in a 95 NA with a Boomslang adapter harness) for a while now. None of the readings on the keypad are very stable. It started out with the water temperature jumping 6 degrees several times per second (88,90,92,90,92,88,90,94,88, etc) and now the rest of the sensors are following. I initially thought this was just a bubble around my water temp sensor, but when ATM started doing the same jump, I thought I'd send an email. Yeah, atmospheric. Just sitting on my driveway ATM jumps from 81 to 86 and back a couple of times per second (I live at 5500' in Albuquerque). That doesn't seem right. MAP is also quite jumpy. As a result of the MAP being unstable, I drive along in T mode most of the time. Sometimes, it'll settle down to a 1 kpa fluctuation and I can get L3 numbers on my keypad. But most of the time, I get rapid 3-5 kpa jumps while cruising with a very steady foot. That puts me in T mode. Suggestions anyone? It seems like a problem with the Link itself. Perhaps there's a capacitor on the board somewhere that likes to give out? My ribbon cable is in good shape and I never get garbage characters on the keypad. The car itself never cuts out. I'm just getting very rapid fluctuations on the sensors. The only sensor that seems to give a steady reading is the air temp probe. Thanks, Adam
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