924s Posted June 13, 2021 Share Posted June 13, 2021 (edited) I did a search to try to get info on Caterham OBD2 diagnostic data, these are 2 of the various links that came up, it did give information on this subject, so i am a bit better informed. This interests me because i have worked with OBD2 generated output on VAG products. https://purplemeanie.co.uk/index.php/2019/08/31/ecu-diagnostics-part-2-ecu-obd-and-can/ https://www.lotus7.club/forum/techtalk/caterham-mbe-ecu-obd-ii-can Edited June 14, 2021 by 924s clarification Link to comment Share on other sites More sharing options...
JohnCh Posted June 13, 2021 Share Posted June 13, 2021 Is there a question or point here or are you simply creating a new thread to point people to existing content? -John Link to comment Share on other sites More sharing options...
924s Posted June 13, 2021 Author Share Posted June 13, 2021 1 hour ago, JohnCh said: Is there a question or point here or are you simply creating a new thread to point people to existing content? -John I thought the link content might be helpful, i searched and didn't find similar content, if you don't like it I will delete it. Link to comment Share on other sites More sharing options...
JohnCh Posted June 13, 2021 Share Posted June 13, 2021 There is a lot of information not currently on the site that may have been asked elsewhere or proactively answered on a blog. if we started a thread with pointer information for each of those, we would blow up the site. It's better to let people ask the questions when they have them, then those who know the answer, or who have a pointer, can provide it at that time. This ensures we get additional context that may not be addressed in that linked content. Alternatively if someone ran into an issue, figured it out on their own or found the information on their own, when they post to proactively share the information, they can provide context for the links. -John Link to comment Share on other sites More sharing options...
Croc Posted June 13, 2021 Share Posted June 13, 2021 Some context for the links is always welcomed. By way of background, I am a contributor on the Lotus 7 Club thread you linked. It is old and somewhat out of date as there were later threads with updated knowledge, reflecting off-line discussions which I was a part of, plus a copyrighted article on the L7C site that we are sadly not able to reproduce on here without causing a copyright issue. The majority of the L7C thread is on this forum as we have covered it in the past - I know because I was involved. The Purplemeanie site is a very good one. John is a true enthusiast plus he is an expert in making videos that are educational. He is currently creating technical videos for the Lotus 7 Club. I have provided some back up material to assist. He has an excellent build thread of a Caterham 420R on his site. If you do find something that you think is worthy of interest then please by all means link it via a post but you should introduce it with a short paragraph on why it was interesting and why it is relevant for other forum members here. Otherwise people just get confused as to what you were intending as it creates 'noise' that they have to sift through to find what they really want to read. Link to comment Share on other sites More sharing options...
924s Posted June 14, 2021 Author Share Posted June 14, 2021 (edited) I was curious why there was a problem getting OBD2 data on some of these cats so i did a search (after 1995 most cars are OBD2) and those 2 links plus others came up. For low production cars it said that full OBD2 data doesn't have to be available. I have a 95 GTI with an Audi 1.8 20vt swap with 2 different ecu's that are tuned the one that came with the car was locked by the company that tuned it making it hard to access to change maps, it is stage 2 tune 20 psi boost, it still has full OBD2 info which is great for diagnostics, it is a very complicated engine and a powerful ecu which is great for tuning. the second ecu I had remapped, also stage 2 but 25 lb boost that I got from a company in the U.S. I started investigating software to do the tunes myself, Nefmoto and Tuner Pro (for VW Audi) are two versions of software you can get to change the maps in the ecu, it also requires a special cable to connect a laptop to the OBD2 port to access the ecu, then you can do your own tunes. I got the cable and an extra laptop, that is as far as it went, if I get interested again I might go further. I also thought it might be a good business to get into. Tuning ecu's today is like upgrading hardware (carburetors, exhausts, etc.) in the old days. I did some research, there is software available to access the ecu and change maps to do your own tune for a large number of the different brands of engines available today. it looks like Caterham (probably the aftermarket tuning company) they source from, locks the ecu, so you can't go in and change the maps to get more power or delete things you don't want. If you get a stock ecu for whatever engine you have and can find the tuning software to access the ecu you might be able to do your own tune. Some links that turned up in a search for tuning software for Ford Duratech ecu's. there might be something interesting there. https://www.maxxecu.com/mtune https://automobilesoft.net/tuning-ecu-soft/ https://obdstation.com/best-car-tuning-software-review/ Edited June 14, 2021 by 924s info added Link to comment Share on other sites More sharing options...
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