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Title: KRKTE well outside calculated value Post by: q_dubz on April 23, 2019, 06:20:05 AM
Set to .038xx and partial LTFT are still calling for almost 16% and 19% more! This would result in around .045xx I'm guessing it's time for FKKVS fixer? Title: Re: KRKTE well outside calculated value Post by: nyet on April 23, 2019, 08:34:20 AM If theoretical KRKTE does not work, fixing it via FKKVS is probably the worst possible "solution".
Title: Re: KRKTE well outside calculated value Post by: q_dubz on April 23, 2019, 11:20:42 AM If theoretical KRKTE does not work, fixing it via FKKVS is probably the worst possible "solution". ok I misunderstood it's purpose then.Title: Re: KRKTE well outside calculated value Post by: nyet on April 23, 2019, 11:26:24 AM If your trims are off by more than 15% with the correct theoretical KRKTE something else is very, very wrong.
Title: Re: KRKTE well outside calculated value Post by: q_dubz on April 23, 2019, 11:50:09 AM If your trims are off by more than 15% with the correct theoretical KRKTE something else is very, very wrong. I completely agree, hence why I posted. I'm looking for ideas. I'm going to wire in an electric fuel pressure gauge so I can log it. But I imagine if that were a problem injector duty would certainly show it.... Hmm Title: Re: KRKTE well outside calculated value Post by: nyet on April 23, 2019, 12:03:03 PM I completely agree, hence why I posted. I'm looking for ideas. I'm going to wire in an electric fuel pressure gauge so I can log it. But I imagine if that were a problem injector duty would certainly show it.... Hmm Injector duty "shows" it when the ECU requests way more fuel than you'd expect due to.. drum roll.... trims :P Title: Re: KRKTE well outside calculated value Post by: q_dubz on April 23, 2019, 10:31:12 PM Injector duty "shows" it when the ECU requests way more fuel than you'd expect due to.. drum roll.... trims :P well here's a shot of fra_w (RED) vs fr_w (BLUE) vs throttle and another with injector duty. Maybe you're right...Title: Re: KRKTE well outside calculated value Post by: nyet on April 23, 2019, 10:50:09 PM What other mechanism would the ECU use to increase injector time if the O2 sensors say lean?
Title: Re: KRKTE well outside calculated value Post by: q_dubz on April 25, 2019, 09:50:06 AM What other mechanism would the ECU use to increase injector time if the O2 sensors say lean? I dunno but I'll read thru the FR and find out.The reason I posted this is because lambda control (fr_w) is taking away fuel, especially under WOT. Completely contradicts the work fra_w is doing which I understand happens BEFORE lambda control kicks in. Title: Re: KRKTE well outside calculated value Post by: Blazius on April 25, 2019, 11:10:16 AM I dunno but I'll read thru the FR and find out. The reason I posted this is because lambda control (fr_w) is taking away fuel, especially under WOT. Completely contradicts the work fra_w is doing which I understand happens BEFORE lambda control kicks in. wot? there is no lamba control on wot? Title: Re: KRKTE well outside calculated value Post by: nyet on April 25, 2019, 11:15:11 AM wot? there is no lamba control on wot? depends if narrowband or wideband Title: Re: KRKTE well outside calculated value Post by: q_dubz on April 25, 2019, 12:52:07 PM wot? there is no lamba control on wot? wideband car. |