AFR problem K24

FlashPro questions & answers specific to the 2007-2008 US TSX
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Borovsky
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Joined: Sat Oct 15, 2016 6:52 am

AFR problem K24

Post by Borovsky » Sat Oct 15, 2016 7:23 am

Hi. Sorry for my english. I was driving one calibration from july to october. In open loop in july AFR was OK over 13. But in october I switched "Use VTC tables upon decel fuel cut" and realised that in open loop my AFR is too lean from 13.6 before vtec to 14.5 after vtec. I tried to add fuel after what AFR changed. But in my cali nothing was changed. Where is problem? Thanks
Attachments
Base calibration 3.1.fpcal
(17.17 KiB) Downloaded 73 times
Base calibration 3.2 AFR problems.fpcal
(17.17 KiB) Downloaded 67 times
No problems.fpdl
(4.83 KiB) Downloaded 66 times
AFR problem.fpdl
(17.69 KiB) Downloaded 74 times
AFR problem +10% fuel.fpdl
(19.94 KiB) Downloaded 68 times

Borovsky
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Joined: Sat Oct 15, 2016 6:52 am

Re: AFR problem K24

Post by Borovsky » Tue Oct 18, 2016 1:03 am

Give me some feedback, please.

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Spunkster
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Re: AFR problem K24

Post by Spunkster » Tue Oct 18, 2016 9:59 am

what happens if you uncheck the use vtc tables upon decel?

Borovsky
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Joined: Sat Oct 15, 2016 6:52 am

Re: AFR problem K24

Post by Borovsky » Tue Oct 18, 2016 11:15 pm

I will try today.

Borovsky
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Re: AFR problem K24

Post by Borovsky » Wed Oct 19, 2016 12:53 am

Nothing changed.
Attachments
Zero vtc upon decel.fpdl
(15.31 KiB) Downloaded 72 times

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Hondata
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Re: AFR problem K24

Post by Hondata » Wed Oct 19, 2016 8:51 am

I don't see a problem (apart from the lambda being lean in places). In 'AFR problem.fpdl' the injector is 11.2 ms and AFR 14.5. In 'AFR problem +10% fuel.fpdl' the injector is 12.1 ms and AFR 13.75.
Hondata

Borovsky
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Joined: Sat Oct 15, 2016 6:52 am

Re: AFR problem K24

Post by Borovsky » Wed Oct 19, 2016 10:18 am

Yes, but if you see datalog "No problems", there INJ 10,6 ms and AFR 13,06. That datalog was recorded in may 2016 with the same fuel tables as in datalogs recorded later in september 2016 "AFR problem" "AFR problem +10% fuel". Maybe there is problem with clearance of my injectors?

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