Wildguzzi.com

General Category => General Discussion => Topic started by: janguzzi on June 28, 2019, 08:21:33 AM

Title: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: janguzzi on June 28, 2019, 08:21:33 AM

I am driving my California Vintage (stock) with maps I got from "Beard" the mastermind  :wink: behind "GuzziDiag".
I am very satisfied with the latest version and I prefer it over the one I got from Beetle.

When you use a mapping with Lambda=off on a 15RC ECU ist also makes sense to take a look at the CO-Trim.
Normally the CO-Trim value is not used on a 15RC with Lambda=on so any value is possible.
Mine is now at - 113 which cannot not make sense when Lambda=off.
Any experience here which values do make sense?

Title: Re: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: janguzzi on June 29, 2019, 01:32:16 AM

With Lambda=off the 15RC acts like a 15M now, so trimming this value would make sense.
I have read somewhere that "0" should be normal, values from "-127" to "127" are possible.
One increment is 10 microseconds.

Title: Re: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: guzzisteve on June 29, 2019, 09:00:58 AM

You are correct.   When I do FI , idle mix is the last thing you do. I hook it all up w/software, go to CO trim and adjust WHILE looking into a ColorTune glass bottom spark plug. Get it spot on.  I have also used a sniffer up the pipe but like to SEE the flame color.

Title: Re: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: janguzzi on June 29, 2019, 11:59:23 AM

Hi Steve,
and which settings are "normal"?

Title: Re: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: Sheepdog on June 29, 2019, 01:36:53 PM

Rodekyll, BrineyJim, and I were doing the GuzziDiag exam on Jim's Vintage and we got similar strange readings. Dave figured out that this bike (which had had two previous owners) did not have a 15RC ECU. Instead we found a 15M. We figured someone dealt with the lean low-speed fueling by putting in an ECU from an older Guzzi. Perhaps the trim values from an '04 would provide an insight...

Title: Re: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: guzzisteve on June 29, 2019, 01:53:31 PM

The 15RC should work like a 15M w/you shut off O2's, in theory huh. Vintage has twinplug heads so it'll burn cleaner.  Most of the 15M bikes that are Cali's are at +30- +50 range,   V11 bikes may be up by +90. 
I would really use an instrument to get it set.   Do you know anyone testing emissions? They have a sniffer. See what the guy wants while you punch the buttons.
Just an idea.

Title: Re: CalVin: Any Experience with CO-Trim for a 15RC with Lambda=off?
Post by: janguzzi on July 01, 2019, 08:49:14 AM

I  did make a CO-Trim to 0 with:

- IAW15xEEPROMTool_V0 .04. (was würden wir ohne Bernd bloß machen ...  :ja)
- TunerPro
- 15RC_EEPROM_V1.01.x df

(https://i.ibb.co/sykBTVx/co-trim.png) (https://ibb.co/sykBTVx)

Bike runs better now!