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09-10-2010, 09:52 AM | #11 | |
Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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Quote:
I've been driving around for about 2 weeks without a tune and see no reason to mess with timing and ignition, as the ECM handles that just fine. There may be some performance to gain by advancing timing, but that's a very grey area because the ECM is likely to try and work around it. Maybe in a couple months, and if I like my tuner, I'll mess around with those. For now, the only problem is really the air/fuel ratio. In all honesty, with 1ZZ injectors in and no tune, the AFR is still pretty safe right up to about 5 psi. Then it begins to get really lean. I've yet to experience any knocking running on 93 octance gas. Also, running with a CEL isn't necessarily a bad thing. Not all CELs indicate a serious issue. Many of them are just the ECU's way of indicating something abnormal... And if you know what you're doing and why you're getting those CELs, it isn't really a big deal. Nonetheless, if I'm correct about the CELs I do currently have, a proper tune with MAF clamping included should sort them out anyways. 2manywheels, thanks a bunch for the PDFs. |
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