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Afr acting crazy...any ideas welcome

Old Mar 31, 2018, 01:39 PM
  #61  
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Ok your on SD tune tephra V7 I take it? The target afr map is only for minor tweaking, you need to make major changes in fueling with the rpm VE and KPA tables. If you try and do to much swing in the afr tables it simply won’t work, it will do just what your saying, adjustments make no difference no matter how lean you go.
For the last time get a tuner who knows evo’s and stop trying to figure it out yourself. If you tuned on a bad cylinder and make a huge cam change without a retune and expect it to have good afr’s your clueless. I’m tired of arguing with Fred and trying to convince you what the problem is.
Please don’t take that wrong but it’s true, and I’m done being a broken record.
Cheers, 2winscroll
Old Mar 31, 2018, 01:51 PM
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When you went WOT and AFRs were good, was that with your old tune before head work, or was that on new tune after your head work?
Old Mar 31, 2018, 03:46 PM
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That was yesterday or day before. Wot is good. 2winscrill I sent Tom at tscomp an email but he hasn’t replied. So you’re saying adjustments in fueling won’t do it? That’s what my tuner was trying to do. I don’t know much about tuning but trying to learn what I can. I’m willing to get a better tuner just waiting on tscomp reply and only half decent tuner around here is 2 hours away. Do any of you have s2 cams on sd? If so did something like this happen when you switched cams? What cams were on there before?
Old Mar 31, 2018, 04:54 PM
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Yes and yes, when i switched to my kelford 284hl cams (huge cams) I had to reduce my rpm ve in the lower rpm’s significantly (less fuel). I can’t find the post but John Bradley had a post on VE tables being out way off can cause the afr target tables to be unresponsive. For instance if your having to set the afr table @ 15:1 to achieve 12:1 out the exaust, your way off on your VE tables. If your tuner adjusted the RPM VE and had no change in afr, your probably going to need to reload your rom, something is way wrong.

Old Mar 31, 2018, 05:58 PM
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idk if he adjusted rpm ve but i saw him choose low octane map and in the low loads go way up from 14.7 and no cigar. Idk how to even find the table but if i post the map on here can you take a look at it? compare it to your ve tables or maybe tell me what to adjust just to make sure thats it so i can be in peace while i way to get a response from tom.
Old Mar 31, 2018, 07:12 PM
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Originally Posted by 2winscroll


Wrong ^^^^^^^ bad info.

relay #3 is always on (power applied) during idle/no boost,
https://www.roadraceengineering.com/...elpumpinfo.htm

There's even a mistake in that diagram.
For relay 3 "off "should say "on" and on should say "off".

That's due to being a different sort of relay which uses break contacts instead of make contacts.
Old Apr 1, 2018, 12:32 PM
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What's your fuel pump setup?
Old Apr 1, 2018, 02:10 PM
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Guys, i got it to read from ecu but i get a unknwon rom image pop up...i read on the forums i have to put the tephra v7 files in evo folder but nothings working...if any of you know how to set this thing up please help...
Old Apr 1, 2018, 02:53 PM
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ok so i checked the return line and when i took it off the tank side no fuel came out and at the rail barely any did...i put air through it and it goes through clean and then fuel came out with it...
Old Apr 1, 2018, 04:36 PM
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someone please help me set up the ecuflash so i can read the roms please?
Old Apr 1, 2018, 05:26 PM
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Originally Posted by nor11384
Guys, i got it to read from ecu but i get a unknwon rom image pop up...i read on the forums i have to put the tephra v7 files in evo folder but nothings working...if any of you know how to set this thing up please help...
You need to do exactly as it says - download the Tephra V7 XML and place it in the xml (rommetadata) directory and make sure it is integrated for your ROM ID. There are instructions in various places throughout the site (and on the wiki if I recall correctly).

Here is one set of instructions: https://www.evolutionm.net/forums/ev...hramod-v7.html
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Old Apr 1, 2018, 05:44 PM
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I copied all of the definitions in the rommetadata folder and it didnt work. Then i copied them into rommetadata, mitsubishi, evo folder and still didnt work. I go through the options of trying to find my rom id but it doesnt let me select anything for the last option which would be evo_7base or something like that. Its just blank. Not sure what im doing wrong here.
Old Apr 1, 2018, 05:46 PM
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Are the files in the correct folder?
Old Apr 1, 2018, 09:14 PM
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fostytou, i did everything up to step 3 in the dirfection on the link and i still get the unknown rom image...i put them in the evo folder...is it possible that my car is not on tephra v7?
Old Apr 2, 2018, 08:25 AM
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When I do this to get the rom id it is blank. It dean give me any options to choose. Where it says evo7base in the pictures mine is just blank.

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