mjdm Posted February 4, 2007 Share Posted February 4, 2007 Received my Emerald back last friday after having the K3 upgrade and have spent the weekend fitting it back in along with an LC-1 wide band oxygen sensor. I've now set the ECU to run in a mixture of closed-loop and adaptive modes (dependent on load and speed sites). Over the evening I've taken it out a couple of times and it's definitely running a lot better than it was in open loop mode before the upgrade . The next step is to see how well the closed-loop correction mapping works over the next few weeks. The only slight problem is I can't read the map back from the ECU (I can write to the ECU, no problem) so can't see how the corrction table looks yet This is probably a serial port communications problem and I'm waiting to hear back from Karl for his thoughts. The upgrade is definitely worthwhile , congratulations to Dave & Karl for bringing it out ! Mike Link to comment Share on other sites More sharing options...
bobt Posted February 4, 2007 Share Posted February 4, 2007 Hi Mike, is this just a firmware upgrade or is there more to it than that? So does that mean that starting from a suitable map the ecu will self map? How much was the wide band? Cheers Rob Link to comment Share on other sites More sharing options...
rgrigsby Posted February 4, 2007 Share Posted February 4, 2007 I believe it's just a firmware upgrade if you have the latest revison of the 32bit ECU, I have the slightly earlier 32bit ECU which I don't think can be upgraded yet. The new firmware has some nice features, the self mapping stuff is nice and does seem to work. Rob G www.SpeedySeven.com Link to comment Share on other sites More sharing options...
mjdm Posted February 4, 2007 Author Share Posted February 4, 2007 Not sure if it's just a firmware upgrade or whether there is a bit more to it than that. The guys at Emerald upgraded the ECU in a little over a week (bit of a backlog due to the Autosport show). The upgrade allows the ECU to work in adaptive mode, closed-loop or open-loop modes. It creates a correction table to allow the existing map to be updated based on the output from the oxygen sensor. I'm using an Innovate LC-1 (about £130 quid from Bill Shurvinton - another top bloke ) but apparently you can use a number of suitable wide band sensors. There is a brochure produced by Emerald detailing what is available with the K3 upgrade (also includes upto 3 maps in memory, exhaust gas temperature, variable sensor settings, wheel speed sensor inputs, boost control etc, etc) Mike Edited by - mjdm on 4 Feb 2007 22:41:52 Link to comment Share on other sites More sharing options...
oilyhands Posted February 4, 2007 Share Posted February 4, 2007 Have had a similar comms problem with a K3, this is now sorted with some help from Karl.. Oily Link to comment Share on other sites More sharing options...
mjdm Posted February 4, 2007 Author Share Posted February 4, 2007 Hi Oily, glad to know it's not just my K3 Hopefully it's a quick fix - then I can see what it's doing. Can I ask what the fix was for your K3 ? Mike Link to comment Share on other sites More sharing options...
martinwhitcher Posted February 5, 2007 Share Posted February 5, 2007 Just upgraded to a K3 and had exactly the same comms problem, turned out the usb-serial adapter not working properly, call Karl and get him to send one of theres about £30 Martin MW 51 CAT Superlight No.171 now known as:Superlight DVA 207 Link to comment Share on other sites More sharing options...
mjdm Posted February 5, 2007 Author Share Posted February 5, 2007 Yep, just tried another laptop with a genuine serial port and that works fine. Looks like a new USB adapter is on the cards. Mike Link to comment Share on other sites More sharing options...
oilyhands Posted February 5, 2007 Share Posted February 5, 2007 I have a new (today) release of the software here that fixes a few bugs.. err.. I mean.. features, if you would like a copy, let me know and I can forward it, it will save Karl some hassle. Cheers Oily Link to comment Share on other sites More sharing options...
bobt Posted February 5, 2007 Share Posted February 5, 2007 Is that PC software K3 specific Oily or will it work with a regular firmware 32bit ecu? Rob Link to comment Share on other sites More sharing options...
CageyH Posted February 5, 2007 Share Posted February 5, 2007 So, what is the benefit of the K3 upgrade? Will it effectively self map the car, if you have a suitable base map? Only dead fish go with the flow.... Link to comment Share on other sites More sharing options...
mjdm Posted February 5, 2007 Author Share Posted February 5, 2007 Had a reply from Karl to say there are some known problems with some USB adapters so I guess a software update probably won't help , thanks anyway Oily The closed-loop part of the manual isn't available yet but from looking at the software it appears that the self mapping requires a base map that is reasonably close to begin with. There are limits to the variance in AFR, beyond which I guess the nonlinearity of the whole engine/induction system makes it unreasonable to try and interpolate the required injection settings. I may have this completely wrong but it looks like the self-mapping works as long as the measured AFR is within +/- 1 of the target AFR. So to self map the whole load/speed site range would require some human interaction to make some estimates as to what to do with the sites that are out of the bounds of the software to bring them close enough for the ECU to take over and do it's stuff. I'm sure there are others out there that can give the definitive (correct !) answer Mike Link to comment Share on other sites More sharing options...
dannylt Posted February 6, 2007 Share Posted February 6, 2007 Cagey - the main reason I'm upgrading is to get the dash switchable maps. My current map causes instant sideways action when you touch the throttle in the wet but I don't want to cripple it for dry use. Link to comment Share on other sites More sharing options...
Stuart Faulds Posted February 6, 2007 Share Posted February 6, 2007 Danny, you say that like it's a fault And who are you trying to kid anyway - you just want a map with bigger flames. Link to comment Share on other sites More sharing options...
dannylt Posted February 6, 2007 Share Posted February 6, 2007 After I almost got chucked off by the Brands marshals for delicately toasting the side of that Elise, I don't think so! It's mainly a road problem because it's annoying having to negotiate roundabounts with a dipped clutch. Also for when you actually want to get past someone chucking up huge amounts of spray in the wet. See - lots of upgraditis justifications Link to comment Share on other sites More sharing options...
Stuart Faulds Posted February 6, 2007 Share Posted February 6, 2007 I've got a couple of K Series on a shelf that would sort both those problems - just say the word Link to comment Share on other sites More sharing options...
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