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SVTPerformance's Chain of Restaurants
Tuning À la carte
Bank to bank AFRs and STFTs deltas
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<blockquote data-quote="Black02GT" data-source="post: 15055849" data-attributes="member: 23818"><p>Holy long post Batman, I'm not going to lie I skimmed a few sections but I think I got the main points. Also I think I talked with you about this briefly before.</p><p></p><p>Imho, anything over around 5%, I think LaSota's guide is 5-10% I'd look into. You seem to have hit all the major points to look at, I would definitely say go through with the injector swap and see if it follows. You seem to have eliminated widebands as an issue, coils, plug, and factory O2s. Like you mentioned, pretty much down to injectors, cams, and possibly ECU. If you force OL that pretty much eliminates factory O2s and wiring.</p><p></p><p>A "air straightener" for lack of a better term might help MAF reading, the laminar flow definitely helps. You can tell pretty easy by logging MAF Counts or Volts and look for noise. TBH, shouldn't take much more than 2-3 logs/pulls to get the MTF pretty damn close. I mean you log MAF Counts and AFR and take the % difference from target. Pretty straight foward for WOT especially if your return style.</p><p></p><p>"When I am satisfied there are no major mechanical issues for him to correct, I will be taking it elsewhere for a re-tune."</p><p></p><p>Pretty much this, get your money's worth out of the labor you already paid and move on.</p></blockquote><p></p>
[QUOTE="Black02GT, post: 15055849, member: 23818"] Holy long post Batman, I'm not going to lie I skimmed a few sections but I think I got the main points. Also I think I talked with you about this briefly before. Imho, anything over around 5%, I think LaSota's guide is 5-10% I'd look into. You seem to have hit all the major points to look at, I would definitely say go through with the injector swap and see if it follows. You seem to have eliminated widebands as an issue, coils, plug, and factory O2s. Like you mentioned, pretty much down to injectors, cams, and possibly ECU. If you force OL that pretty much eliminates factory O2s and wiring. A "air straightener" for lack of a better term might help MAF reading, the laminar flow definitely helps. You can tell pretty easy by logging MAF Counts or Volts and look for noise. TBH, shouldn't take much more than 2-3 logs/pulls to get the MTF pretty damn close. I mean you log MAF Counts and AFR and take the % difference from target. Pretty straight foward for WOT especially if your return style. "When I am satisfied there are no major mechanical issues for him to correct, I will be taking it elsewhere for a re-tune." Pretty much this, get your money's worth out of the labor you already paid and move on. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Bank to bank AFRs and STFTs deltas
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