davek Posted July 9, 2015 Share Posted July 9, 2015 L28ET with MS3X sequential spark & fuel. Innovate MTX-L wide band I have it idling pretty good right now. but wide band reading about 3.5 and TS reading about 4.5 Which could be correct and how do I synchronize them. Tuner Studio user guide wasn't very clear. When starting a project my choice was wide band(default) or lamnda. I chose default. and ideas? Quote Link to comment Share on other sites More sharing options...
Meguiars Posted July 10, 2015 Share Posted July 10, 2015 (edited) Hi, i had the same problem but i solved it by looing at this video. Make sure you look at the whole video. //Stian Edited July 10, 2015 by Meguiars Quote Link to comment Share on other sites More sharing options...
davek Posted July 10, 2015 Author Share Posted July 10, 2015 Sounds good Meguires Now to find a program cable. Quote Link to comment Share on other sites More sharing options...
davek Posted July 10, 2015 Author Share Posted July 10, 2015 I just noticed the program cable in he Innovate box. Now I need a 9 pin serial to USB. Serial port getting a little old school. Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted July 14, 2015 Share Posted July 14, 2015 Where are the MS3 and the MTX-L grounded? Quote Link to comment Share on other sites More sharing options...
davek Posted July 14, 2015 Author Share Posted July 14, 2015 Hello Matt Both are grounded to the same place on my fuse/relay panel I made. From there, master ground goes about 10" to battery post via 12ga wire. Out of town this week. will get back into it Sat or Sunday. Should I try the programing shown above or you might have other suggestion? Quote Link to comment Share on other sites More sharing options...
SHADY280 Posted July 21, 2015 Share Posted July 21, 2015 The 9 pin serial cable is a very good data cable and isn't affected by electronic noise. It operates from 3-15 volts whereas most USB cables aren't shielded and operated within a 200 mv range making them very susceptible to electrical noise. I ditched my USB and just use a good quality adapter and my sync problem went away Quote Link to comment Share on other sites More sharing options...
davek Posted August 2, 2015 Author Share Posted August 2, 2015 Finaly got to getting a cable. No excuses. Followed Megruires vid-James Murray. Everything appeared to program as explained. Made no difference at all. MS still reads about 1.0 to 1.1 leaner than my wide band. Anybody have anymore thoughts? I don't know anyone anywhere to borrow one for a test. Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted August 3, 2015 Share Posted August 3, 2015 I would fudge the numbers under Tools -> Calibrate AFR Table to get them to match up. Quote Link to comment Share on other sites More sharing options...
davek Posted August 3, 2015 Author Share Posted August 3, 2015 I'm all for that but there isn't much to there to fudge. A little more detail please. something like this: I programmed the wide band to 0v = 8.5, 5v = 20 so calibrate ECU like this 0v = 8.5 5v = 21 seems you could play for hours finding the right offset. for 0 & 5 volts. It seems you could find a match at say 13AFR but at 11 or 15 they would be off. 2 different curves with only one common point on the curve. Am I missing something? Do you know a simple way? cheers Matt Quote Link to comment Share on other sites More sharing options...
davek Posted August 3, 2015 Author Share Posted August 3, 2015 It's linear nobody to talk to here in the garage so I will ramble my thoughts. 8.5/20=.435 volts per AFR unit .435 should be my offset. I'll change MS to 8.065 -- 19.565 Quote Link to comment Share on other sites More sharing options...
davek Posted August 3, 2015 Author Share Posted August 3, 2015 That worked easy enough. I'll let you know after I drive if not correct. Quote Link to comment Share on other sites More sharing options...
SHADY280 Posted August 7, 2015 Share Posted August 7, 2015 http://mx5cartalk.com/forum/viewtopic.php?f=76&t=60640 Here are some instructions to a more scientific approach. Seems legit. I know I have to do the same on mine Quote Link to comment Share on other sites More sharing options...
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