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11-01-2018, 06:01 AM | #15 |
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Also log fuel system status see if its switching between cl and ol
Oft v4 have zeroed or reduced the ol\cl timers and fhe ol and cl fuel maps are way different |
11-01-2018, 07:53 AM | #16 | |
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i cant see anything from the datalog other than maybe the short fuel trim might too high but not sure if this is your issue, save your maf scale for a backup and try rescaling your maf using this method you dont need the excel spreedsheet just multiply by percent to your maf scale and see if it gets better if not we will need to look at more stuff, it could be torque calculation issue or something but i dont know any thing about auto trans tuning [ame]https://www.youtube.com/watch?v=iP4BgKoRvQo[/ame] |
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11-01-2018, 08:48 AM | #17 | |
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11-02-2018, 01:27 AM | #18 | |
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The v4.03 Stg 1 transient retard table is not smooth at all; i was thinking about taking a lot of the retard out to help smooth it out. I tend to shift out of 1st at around 2-2.5k between 0.5 and 0.7 g/rev. |
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11-02-2018, 01:56 AM | #19 | |
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11-02-2018, 08:52 AM | #21 | |
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11-04-2018, 03:19 AM | #22 |
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I captured a log with the bucking while upshifting into 3rd with ignition and port/direct IPWs:
https://datazap.me/u/protoformx/log-...zoom=5108-5162 Observations: -The bucking is causing my foot to open the throttle a little more in a feedback loop. It shouldn't be enough to trigger tip-in enrichment, but it looks like it is causing the load to wildly vary. -Fueling mode is CL the whole way. -The port inject fraction table in this region is either 0%, 25%, or 50%. The log shows flip-flopping between all DI and some PI. -Looking at the upshift to 2nd immediately prior, there is no injector mode flip-flop during the accel, it's all DI in 2nd. It was PI/DI in 1st. Possible conclusion: the injector mode toggling is causing the jerkiness. If this is true, what can I do to smooth out the PI fraction table and not impact power or knocking? |
11-04-2018, 04:04 AM | #23 | |
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11-04-2018, 04:53 AM | #24 |
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i usually use 0.9-1 load limit, 25 or 30% threshold and 3200 rpm, i m good with it
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11-04-2018, 05:29 AM | #25 |
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OFT goes down to 30%. It also has a minimum PI quantity limit of 2.28 -- not sure if this is mL or ms. Looking at my log, it doesn't look like its ms. Looks like I can only go down to 30% in the PI ratio table for non-zero PI? If true, what are the implications of staying DI-only?
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11-04-2018, 06:05 AM | #26 |
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try
25% 3200rpm load 0.9 minimum PI 1.5 i also lower PI scaling from 228 to 224, but not fundamental |
11-04-2018, 06:54 AM | #27 |
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Not in the PI table but the PI threshold settings.
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11-04-2018, 04:10 PM | #28 |
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