It did work out well, and worked like it was supposed to. I sent Ross the log to look over. If he says its okay, I can post it up, but i think he will want to make the final decision. I imagine he will upload it to the download section.
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It did work out well, and worked like it was supposed to. I sent Ross the log to look over. If he says its okay, I can post it up, but i think he will want to make the final decision. I imagine he will upload it to the download section.
I have the same startup problem with my 2005 truck with COS 5120003. I also have a 2000 truck with COS 1270003 that doesn't have this problem. It sure would be good to have it fixed. Thanks for all your hard work.
RonC
Ditto , 05 COS3 , let us know how to fix !
Ditto; 04 COS3- 04073003
Thanks very much to Whippled 496 for the first post with a very good description of the problem and some other findings!!
The log and tune were really good for looking at the symptom! The resolution has been identified, and successfully tested. An update will be provided soon, there are a lot of files to go through.
No problem, just doing what i can to help out. DC_Justin brought it to my attention first, i just followed up on trying to find the resolution. For those of you who are having problems like i was, you can use my fix for the time being, its not perfect, but it will keep you rich through warm-up. Just use the values i have in my B3650 table. I posted the tune in the first post of this thread.
Thanks Whippled 496 for your confirmation.
I'll be busy applying the code fix over the next couple of days to all 2003+ O.S's (with the normal and E85 tables), actually, it might not even take that long, it's a simple change.
When done I'll create a new thread under custom O.S's with a link to download the tun files.
You won't need to do anything more than a full flash, then a cal flash of your existing tune.
Whippled 496 also highlighted an issue where he's commanded AFR was a little out compared to the scantool AFR, I'm not sure if this may simply be a rounding issue more than anything between the table and the scan PID. I think it was like 0.06 or 0.07 AFR, so by any means not a real issue.
Cheers,
Ross
Nice, Im hoping this is the fix to the issue I have always had with COS5 & COS3 where GM.AFR bore no resemblance to my commanded B3647 AFR, sometimes like 2.0 AFR out! I posted logs up a while ago and tune files, but it wasnt chased down.
I also got a log from last night with the same problems.
Ross, Id love a test COS3 or COS5 to try. 129000x please :)
Richard, that O.S should not be suffering this issue.
FYI, that is the same O.S I am using and I've never seen AFR errors like that, please Email to log file to me (and tun too), sorry I missed it all the first time.
The new 2003 + tun files with the fix are available here -
http://forum.efilive.com/showthread.php?t=4285
Cheers,
Ross
Yeah realised Im running a 129000x which isnt an 03+.
Ill get you the log and tune asap. Thanks Sir.