A9L2 Tune into 8LD EEC progress

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Re: A9L2 Tune into 8LD EEC progress

Unread postby gamh44 » Fri Jul 06, 2018 4:28 pm

Thanks, decipha!

I failed to mention that I am doing all this without a wideband so the FE% is what TPRT is spitting out. I assume that is still OK.

The Flow values are only there because they are in the XL file I am using to do all the calculations. I'll be multiplying those by the FE% and setting it all up again.
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Re: A9L2 Tune into 8LD EEC progress

Unread postby gamh44 » Sat Sep 15, 2018 4:00 am

I am (still) running through the first step to dial in fuel (looking at FE% at various IMAF points) and have made a couple of adjustments to the MAF curve. As this progresses, the KAMRF values are sometimes pegging at 0.969V. They regularly go above and below 0.969V but often = 0.969V for periods of a sometimes a few seconds or even much more. It seems that this is happening more as I adjust the MAF function but that could just be coincidence. I feel like I have reached the limits of the EEC to manage the short term fuel trims (i.e fuelling is way off) but there is one example where the FE% is being reported as around 0.98 at the same time as the pegging.

Also, in collecting FE% data, keeping IMAF constant for around 10s, the KAMRFs sometimes bounce between two (only two – nothing in between) values. In one log for example at 400 IMAF, the KAMRFs are either 0.988 or 0.992 (one or the other). At this time the FE% varies between about 0.98 and 1.02 and the LAMBSEs are around 0.98.

What does this all mean?
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Re: A9L2 Tune into 8LD EEC progress

Unread postby decipha » Sat Sep 15, 2018 4:52 am

anything +-- 5% is dialed in, so any correction between 0.95 and 1.05 you ignore
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Re: A9L2 Tune into 8LD EEC progress

Unread postby gamh44 » Sat Sep 15, 2018 6:07 am

Cool, thanks!
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