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Location:
Brisbane
Registered:
February 2003
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Re: 1g-gte Unussual tacho behaviour
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Mon, 24 January 2005 03:14
 
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| HyDrA wrote on Mon, 24 January 2005 10:03 |
Hmmm I wonder if my ignitor is faulty? 
Maybe I just need to get rid of the standard ignition and do something cooler... When did they say UMS was coming out?
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UMS is due in 6-9 months - Megasquirt II is in testing at the moment so expect it sooner.
From my (work affected) recollection, there is a return signal from the igniter to the ECU (IGd ?) that tells the ECu if the ignition event was a 'good' event (e.g. spark plug fired). At higher rpms, that signal might be truncated in duration.
you don't want to pull a signal directly from the coil as you'll be placing a much higher voltage across the tacho input (i think). If you used a MSD igniter, you'd be shoving nearly 400V at the tacho. You'll also get varying pulse widths from there as the dwell time on the coil does vary a bit as rpms rise.
Hydra: If you're feeling experimental, the MSnS thread on MSEFI.COM has discussion about using the wheels in various dizzis (toyota included) to - one variant looks like being able drive a toyota DLI ignition system (e.g. waste spark).
Start reading here: http://www.msefi.com/viewtopic.php?t=5296 and here for DLI stuff: http://www.msefi.com/viewtopic.php?t=4895
(wilwal98: sorry for the post hijak)
cheers, charles.
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| | Subject | Poster | Date |
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1g-gte Unussual tacho behaviour
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willwal98 | Sat, 22 January 2005 13:18 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Sat, 22 January 2005 20:51 |
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Re: 1g-gte Unussual tacho behaviour
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sideshow | Sat, 22 January 2005 21:00 |
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Re: 1g-gte Unussual tacho behaviour
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grim boy | Sun, 23 January 2005 11:32 |
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Re: 1g-gte Unussual tacho behaviour
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sixworks | Sun, 23 January 2005 20:59 |
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Re: 1g-gte Unussual tacho behaviour
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willwal98 | Sun, 23 January 2005 21:10 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Sun, 23 January 2005 21:52 |
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Re: 1g-gte Unussual tacho behaviour
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RA28 | Sun, 23 January 2005 23:22 |
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Re: 1g-gte Unussual tacho behaviour
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indian | Sun, 23 January 2005 23:28 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Mon, 24 January 2005 00:03 |
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Re: 1g-gte Unussual tacho behaviour
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sixworks | Mon, 24 January 2005 01:48 |
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Re: 1g-gte Unussual tacho behaviour
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thechuckster | Mon, 24 January 2005 03:14 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Mon, 24 January 2005 02:55 |
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Re: 1g-gte Unussual tacho behaviour
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sixworks | Mon, 24 January 2005 03:07 |
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Re: 1g-gte Unussual tacho behaviour
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RA28 | Mon, 24 January 2005 07:14 |
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Re: 1g-gte Unussual tacho behaviour
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CrAiGzEE | Mon, 24 January 2005 11:55 |
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Re: 1g-gte Unussual tacho behaviour
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sixworks | Mon, 24 January 2005 20:59 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Mon, 24 January 2005 04:03 |
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Re: 1g-gte Unussual tacho behaviour
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EvilJack | Mon, 24 January 2005 04:18 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Mon, 24 January 2005 22:13 |
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Re: 1g-gte Unussual tacho behaviour
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flynn21atwork | Mon, 24 January 2005 23:58 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Tue, 25 January 2005 00:08 |
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Re: 1g-gte Unussual tacho behaviour
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sixworks | Tue, 25 January 2005 00:34 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Tue, 25 January 2005 01:03 |
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Re: 1g-gte Unussual tacho behaviour
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willwal98 | Tue, 25 January 2005 01:21 |
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Re: 1g-gte Unussual tacho behaviour
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willwal98 | Tue, 25 January 2005 08:10 |
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Re: 1g-gte Unussual tacho behaviour
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Nark | Tue, 25 January 2005 08:37 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Tue, 25 January 2005 21:42 |
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Re: 1g-gte Unussual tacho behaviour
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RA28 | Tue, 25 January 2005 09:01 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Tue, 25 January 2005 21:41 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Sat, 29 January 2005 04:21 |
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Re: 1g-gte Unussual tacho behaviour
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ddeane | Sun, 30 January 2005 00:09 |
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Re: 1g-gte Unussual tacho behaviour
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sideshow | Sun, 30 January 2005 00:24 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Sun, 30 January 2005 00:29 |
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Re: 1g-gte Unussual tacho behaviour
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justcallmefrank | Sun, 30 January 2005 01:16 |
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Re: 1g-gte Unussual tacho behaviour
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CrUZsida | Sun, 30 January 2005 11:56 |
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Re: 1g-gte Unussual tacho behaviour
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justcallmefrank | Sun, 30 January 2005 13:54 |
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Re: 1g-gte Unussual tacho behaviour
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justcallmefrank | Mon, 31 January 2005 01:13 |
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Re: 1g-gte Unussual tacho behaviour
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HyDrA | Mon, 31 January 2005 02:35 |
