CAJ Innovations Forums - My16 on a 2 Cylinder Laverda with 1 Lambda-sensor

Laverdalothar

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Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor
Reply #15 - 07/05/10 at 15:51:33

Hi Raz,

not 100% sure what you mean, as Markus is doing the tuning and I am just trying to help him remotely. As far as I know, the teeth-wheel signalizes dead top center via 2 missing teeth and all values are based as an advanced out of that point for the next cycle - right? Markus has - as far as I have in mind - set advances for the injection as well as for the ignition, the second cylinder is also set as a function of - I think - 15 teeth after the 2 missing ones. Is that the answer to your question?

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raz

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Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor
Reply #16 - 07/05/10 at 16:15:13

No, InjVOn is compensation for injector dead time [the lag from leading edge of injector pulse until actually squirts fuel] at various battery voltages.

When injecting every revolution, the InjVOn is twice as important to get right, but having said that you will probably do fine without it (using only zeroes) for now. Anyway it's likely the reason you didn't succeed in translating the stock map (that map may or may not have injector dead time included in all its values).

Another note: In Global Map Adjust, if you first press Apply and then OK, the operation you made (like adjusting mixture in part of the map) will be performed twice. Maybe this bug adds to your problems?

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greenmonster Full Member Offline Sweden Posts: 196	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #17 - 07/05/10 at 22:21:16 Quote: Greenmonster, are you using V as a Lambda sign (that would be a very confusing choice) or are you confusing lambda with voltage? Factory default LC-1 at A/F of 13.5 (Lambda 0.92) is 2.05V. Yes, sorry to say but I did. Excuse me, lothar, raz is right.
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Luhbo Full Member Offline I Like My15M! Posts: 186 Germany	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #18 - 07/25/10 at 20:13:52 Lothar, there will be a Laverda meeting next weekend near Wuerzburg. Will you attend? I'll be there. Were are you from? Hubert
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Laverdalothar YaBB Newbies Offline I love MyECU! Posts: 25	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #19 - 07/25/10 at 22:30:13 Hi Hubert, will not be able to make it, sorry... I am from Cologne area. You are having a Laverda, too? Which one?
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Luhbo Full Member Offline I Like My15M! Posts: 186 Germany	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #20 - 07/25/10 at 23:42:50 No no, not me. Just my former (and still) buddies. This goes back to the early eighties. I myself always was Guzzi mounted only. Nevertheless, a 3C would come quite handy actually. Hubert
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Laverdalothar

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Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor
Reply #21 - 09/19/10 at 16:57:06

Hi, me again,

we found that the Lambda sensor delivers values only between Lambda 0,5 and Lambda 0,8 currently, no matter what we do. This is heavily rich. we used the original bung from the LC-1, which is quiet long and so the sensor is not really in the exhaust pipe. Any experiance if this makes any difference?

Second to that, the tacho does show values that jump up and down, even if we switch the dip-switch to tacho-readings instead of TPS and other functions from the My16M. Any idea why that is? Seams there is some "noise" coming from the My16M influencing the signal?!? Can that be solved with a capacitor maybe? which size?

Thanks

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raz

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Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor
Reply #22 - 09/20/10 at 01:09:24

Laverdalothar wrote on 09/19/10 at 16:57:06:

we used the original bung from the LC-1, which is quiet long and so the sensor is not really in the exhaust pipe. Any experiance if this makes any difference?

The bung that came with my LC-1 kit places the sensor tip inside the exhaust. In some applications you need to use a longer bung in order not to overheat the sensor. I don't think there are any downsides.

The Innovate Forums are up and running again, after having been down for a long time. Lots of useful info there (like things that could cause false rich readings, in case that is what you have)

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Laverdalothar YaBB Newbies Offline I love MyECU! Posts: 25	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #23 - 09/20/10 at 01:37:55 Hi Raz, the bung that came with mine is 2,5cm long. The sensor is - as far as I remember - not reaching into the exhaust. What length is yours? I mean the bung!
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raz Senior Member Offline Guzzi 11OO Sport, My16MkV, Innovate LC-1 Posts: 373 Stockholm, Sweden Gender:	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #24 - 09/20/10 at 01:41:51 From memory it's about half of yours. It's only as long as the threaded part of the sensor. But I don't think this is your problem. With a longer bung you are less likely to overheat the sensor and you are also much less likely to destroy it with condense water on a cold start.
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_Cliff_

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Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor
Reply #25 - 09/20/10 at 08:07:28

Laverdalothar wrote on 09/19/10 at 16:57:06:

we found that the Lambda sensor delivers values only between Lambda 0,5 and Lambda 0,8 currently, no matter what we do.
Thanks

What are you doing? Perhaps what you are doing and what you think you are doing is not the same.
If you are closed loop are you seeing it go to -25%?
Laverdalothar wrote on 09/19/10 at 16:57:06:

Second to that, the tacho does show values that jump up and down, even if we switch the dip-switch to tacho-readings instead of TPS and other functions from the My16M. Any idea why that is? Seams there is some "noise" coming from the My16M influencing the signal?!? Can that be solved with a capacitor maybe? which size?

Thanks

The My15M had a noise issue which is why I started putting caps across the spark FETs. I've not seen the issue on a My16M.

Does your ECU have them. They're under the PCB. You could try removing them by unsoldering one leg of the cap. Sometimes the caps can make things worse.

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Luhbo Full Member Offline I Like My15M! Posts: 186 Germany	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #26 - 09/21/10 at 05:45:46 Lothar, PM me and I will share my telephonenr. and email with you. Hubert
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Laverdalothar YaBB Newbies Offline I love MyECU! Posts: 25	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #27 - 09/22/10 at 01:35:51 @Cliff: thanks, I'll check with Markus @Hubert: you've got mail
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Laverdalothar YaBB Newbies Offline I love MyECU! Posts: 25	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #28 - 10/01/10 at 17:05:24 Hubert, have sent you a mail but did not get a reply. did you get it, please? Thanks Lothar
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Luhbo Full Member Offline I Like My15M! Posts: 186 Germany	Re: My16 on a 2 Cylinder Laverda with 1 Lambda-sensor Reply #29 - 10/02/10 at 03:45:47 Sorry! Got everything, 've been just a bit busy. Hubert
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