high a/f correction and learning at idle - Subaru WRX Forum
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#1 Old 09-30-2013, 12:27 PM
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high a/f correction and learning at idle

OK, so i have been running an opensource ots map from xpt tuning for the last year or so for vf39, gm bcs, pink injectors, tbe, large tmic, k&n drop in....has been running fine for me as far as i could tell (hadn't done any logging)....I recently decided to go e85 route with an etuner, modified the pink injectors, he sent me a base map for 740cc injectors (he sd he's done modded injectors before and thats the size he used). i am having problems with high a/f correction and a/f learning at idle, not so much normal driving, and looks to be fine at wot. tuner thinks its a vac leak near the manifold somewhere, but i have been unable to find any leaks, i did fix a leak on the bpv, but problem still exhists, not as much, but is still there.......correction is about 15ish and learning is about the same....afr is between 14.5 and 15 at idle. i am not hitting full boost at full throttle......target is 17 i believe

have stock airbox and after maf tube and ebay turbo inlet along with the other mods for the map

heres a log on my way to work today....has some normal driving, idle time, and small wot pulls

anyone have any suggestions?

https://docs.google.com/file/d/0B_ms...it?usp=sharing
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#2 Old 09-30-2013, 12:46 PM
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What is your DAM? I can't look at the log on my phone right now.

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#3 Old 09-30-2013, 01:03 PM
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guess im not sure what the DAM is
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#4 Old 09-30-2013, 01:16 PM
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Correct me if im wrong but, isn't 14.7 perfect afr at idle? That's what i get and that is between 14.5-15 like the op says he's getting.

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#5 Old 09-30-2013, 01:21 PM
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see thats what i thought too, but my tuner says the correction is too high.....dont know why matters if its not maxed out and still at safe afr......btw correction and learning is 0 with solid 11.14 afr at wot
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#6 Old 09-30-2013, 03:25 PM
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Dynamic Advance Multiplier. It'll let know if the engine is happy or if it's experiencing knock and pulling timing.

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#7 Old 09-30-2013, 03:50 PM
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i guess i didnt log that field, only have Knock Correction Advance (degrees) and Knock Correction Advance (IAM only)* (degrees) regarding knock
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#8 Old 09-30-2013, 04:34 PM
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What you need is a better tuner...seriously. Ask him if he knows what stoich is. If he doesn't look else where.
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#9 Old 09-30-2013, 04:35 PM
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Oh and just because he's done a bunch of modded injectors before, doesn't mean that all of them turn out the same and the range can very greatly.

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#10 Old 09-30-2013, 05:58 PM
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I was thinking the same thing. Only problem is i already paid him and my funds are limited rite now......he hasnt tuned anything, just gave me a map and read loggs.....were still on premium fuel, havent even come close to e85 yet.......now hes tellin me he thinks my maf is going bad? Idk, getting frusterated with the whole thing....seems like he just wants me to replace parts and doesnt wany to tune anything

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#11 Old 09-30-2013, 06:18 PM
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And now im stuck w modded injectors and no compitent tuner......anyone have suggestiins for decently priced open source etuners that know what they are doing?

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#12 Old 09-30-2013, 06:22 PM
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Adair used phatbotti tuning...Adair get in here. Lol.

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#13 Old 09-30-2013, 06:29 PM
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Ron at phatbotti is the bees-knees! I can give you his contact info if you like. I know you already paid but, a good tune and bad tune could be the difference between a blown motor. Reseach their reviews and see what you think. I hooked another guy (daddysfastwrx or daddysfastcar ) up on here and he was very pleased as well.

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#14 Old 09-30-2013, 06:36 PM
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Ya, i think ill take you up on that.....def dont want a blown motor

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#15 Old 09-30-2013, 06:41 PM
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So the big question is, am i safe to drive it til i find a tuner. Or should i just park it til then?

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