Sai Li System Help

[venumous]

https://imgur.com/gallery/v80rH

Is this correct?

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[venumous]

Wiped the tune and reloaded. Looks like LTFT is not adding anything on this one WOT? How does this look?

http://www.datazap.me/u/venumous/50...17-18-19-20-21&trim=0&tmin=132.98&tmax=143.37

 

[markmurfie]

They are at .99 while your STFT are .94-1.06.
5-7% off is a lot better than 15-20%.
Looks much better.

So it was the tune and nothing with the pump?

 

[venumous]

They are at .99 while your STFT are .94-1.06.
5-7% off is a lot better than 15-20%.
Looks much better.

So it was the tune and nothing with the pump?

That is exactly the same tune. I just loaded stock tune, then reloaded e85 tune right after. Let it idle for 2 mins, drove for a mile, then did the pull.

 

[markmurfie]

Flashing with n gauge? Do you have the latest firmware?

 

[venumous]

Flashing with n gauge? Do you have the latest firmware?

SCT X4 and probably not.

 

[superman07]

Does flash reset kam

 

[venumous]

I don't know. I wondered the same. Regardless, if it is supposed to, if it did not for whatever reason, this may explain the issue. I know some cars like BMWs need to be wiped by disconnecting battery for extended period of time to erase adaptations, even if they have been flashed.

 

[Tommy V]

Their are certain things that require a kam reset.Sometimes just unhooking the battery battery does not work,its best to do a kam reset with a scan tool or your x4.Unless u changed throttle bodies or had tb fault codes i dont think u would need a kam reset,i would think flashing a new tune would reset all the memory.

 

[ahl395]

Lund told me bad flashes can happen from time to time. Car wont run right or have other issues. Sounds like that could have been your problem.

It has happened to me before, although with noticeable running problems

 

[venumous]

Yeah it seemed like a bad flash to me based on the before and after logs. Lund says the new log looks good and to rev to 7500 for a full pull. Glad it turned out to be nothing! Hope to have her finalized by Friday. Thanks everyone for the help and hopefully this thread can help others in the future if they get a bad KAM flash.

 

[venumous]

Pull to 7300

http://www.datazap.me/u/venumous/50...16-17-18-19-20&trim=0&tmin=402.90&tmax=412.47

 

[Dntalman]

Here's a history lesson on Fuel trims.

Back when cars had narrow bands O2 sensors open loop was used to obtain a rich wot lambda. Open loop eliminated the fuel trims to do this as narrow bands were limited to swinging rich or lean of lambda and that's it. So STFT and LTFT not being used at wot is or dated information.

Modern day cars come with wide band O2 sensors. The ECU quirks with them directly. This gives the ecu the ability to target a rich wot lambda and apply error corrections while doing it. So while it's still called open loop, it's really not.

What he said..

 

[markmurfie]

I also said the coyote was gone get DI, but so did others.

When I first saw 15+ vct I said this is lean burn, like a hybrid. Gen 2 coyotes don't have lean lambda at cruise so no one believed me.

Now the 18+ are getting DI. they were also getting a exhaust strategy. My guess, this is to advance exhaust valve closing, so that a lean burn fuel strategy using the DI can be used. Cruising lambda values may scare some people.

I'm pretty sure we will see a hybrid coyote at some point.

 

[venumous]

Seriously ready to throw my hands up with this thing. Check out this log.

Pull in 3rd looked mostly ok (slight misfire at 7300? Plugs are Brisk gapped at .030 with 3.5k mi on them).

3rd to 4th gear shift, goes lean and hits +8 degrees of knock on E85!

What would you guys recommend I do?

http://www.datazap.me/u/venumous/50...-14-16-17-18-20&trim=0&tmin=68.54&tmax=145.58

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