docc Posted March 9, 2018 Share Posted March 9, 2018 So many V11 were shipped with the CO Fuel Trim set very, very lean (settings of minus 25 or much more have been reported). Do not skip this step! Zero (or optimize) the CO Fuel Trim on your V11! It can be done with guzzidiag, the original Moto Guzzi "Axone," VDSTS Pro software, or Meinolf's method through the EEPROM (which I do not understand). (Using a "PCIII" to accomplish this is considered rather *less than ideal* at this juncture.) Perhaps we can get the EEPROM method clarified here . . . Link to comment Share on other sites More sharing options...
emry Posted March 9, 2018 Share Posted March 9, 2018 I bought a MyECU because of this, the other tools were not as prevalent back then. Stalling at stop lights made the original ECU useless during commuting. 1 Link to comment Share on other sites More sharing options...
docc Posted March 9, 2018 Author Share Posted March 9, 2018 I'm embarrassed to say that it took me eight years, like 31,000 miles, to get my CO zeroed. Andy York took care of it for me. These days, we have guzzidiag to get it right. Do not neglect your CO Fuel Trim! Meinolf has another method that he says is easier. Perhaps we can get that clarified here . . . Link to comment Share on other sites More sharing options...
fotoguzzi Posted March 9, 2018 Share Posted March 9, 2018 When I had a Lemans and a Bassa that was the main fix! and after the fix I scoffed at the Power Commander as a fix.. it really made my bikes superb, smooth idle and crisp pickup off the line.. I used the old VDST .. had to partition my Mac to have a windows XP OS just for that. 2 Link to comment Share on other sites More sharing options...
Meinolf Posted March 9, 2018 Share Posted March 9, 2018 Hi, ...or Meinolf's method through the EPROM (which I do not understand). Perhaps we can get the EPROM method clarified here . . . it's easy. Instead of changing the CO trim with GuzziDiag connected to the running engine and waiting until the engine temperature has reached 60°C, download the EEPROM content using Beard's software http://www.von-der-salierburg.de/download/GuzziDiag/IAW15xEEPROMTool_V0.04.zip. Then open the EEPROM file with TunerPro and this XDF http://www.von-der-salierburg.de/download/GuzziDiag/xdf/15M_EEPROM_V1.01.zip. Change the CO trim and upload the changed file to the EEPROM. Donate some money to Beard using the PayPal link in GuzziDiag and it's done. Cheers Meinolf 3 Link to comment Share on other sites More sharing options...
Mike Stewart Posted October 31, 2018 Share Posted October 31, 2018 So I have a question on the CO trim, I had downloaded the titanium map to my 03 Rosso and just noticed that the CO trim was at -15. Does that mean that the CO trim was in the map I downloaded or is it another part of the computer that stays no matter what map you have? Link to comment Share on other sites More sharing options...
Mike Stewart Posted October 31, 2018 Share Posted October 31, 2018 I think I found the answer, it is in the EEPROM! 2 Link to comment Share on other sites More sharing options...
al_roethlisberger Posted November 24, 2018 Share Posted November 24, 2018 What are the running symptoms of the CO being set too low? The problem I've had with the bike since new was a "cough" at around 3-4k RPM once warmed up and cruising. Sometimes moving the cruising RPM around will stop it for a bit, but it returns. Link to comment Share on other sites More sharing options...
docc Posted November 24, 2018 Author Share Posted November 24, 2018 Yep, very low CO trim will contribute to that. Along with the rest of the "Decent Tune-up." 1 Link to comment Share on other sites More sharing options...
fubar guzzi Posted April 22, 2019 Share Posted April 22, 2019 Please explain what eepron is +how to set it up as mentioned byMeinolf.What type hardware do I need? 98EV Link to comment Share on other sites More sharing options...
antmanbee Posted April 22, 2019 Share Posted April 22, 2019 They are referring to a 15M ECU. You have a P8 ECU and the CO is set by inserting a small screwdriver in a hole in your ECU and adjusting richer or leaner. Link to comment Share on other sites More sharing options...
fubar guzzi Posted April 22, 2019 Share Posted April 22, 2019 Thank you Mr. Antman---I have a small screwdriver,know where the hole is,however I don't know when to stop turning the screw!!!!!!!!!!!! Please advise. Link to comment Share on other sites More sharing options...
LowRyter Posted April 22, 2019 Share Posted April 22, 2019 My 98 EV has a little knob to richen it. If I set in the Colorado it will backfire in Oklahoma. Link to comment Share on other sites More sharing options...
fubar guzzi Posted April 23, 2019 Share Posted April 23, 2019 Good mornin Mr.LowRider,thank you for your immensely informative posting of co adjustment,now it will be a snap to adjust correctly.On a 2nd note please share with us what brand BOURBON you drink-----I have an inquiring mind!!!!! Link to comment Share on other sites More sharing options...
LowRyter Posted April 23, 2019 Share Posted April 23, 2019 Must've been scotch. Look for the "knob". Link to comment Share on other sites More sharing options...
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