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Here it is for wideband tuning. Dial it in with narrowbands after you get the B2 issue sorted.

Hey man been extra busy lately. I'll get to this in a while for you.

I'm having good results doing a tune using Deka 80's with a vacuum-referenced reg set to 3bar (43.5psi). Started with 4bar using the AACorvette Deka 80 data, but it' was tuning like garbage. I...

IAT relocation helped. Actual tracks commanded a lot more consistently. Still there's the lean spike on tip-out after WOT.

WMI is off when when you let off the pedal and the throttle shuts. If...

I would say load SD_2 and apply changes to main spark in the opposite direction of SD_3 to see if that has a positive effect. From the log at 13:13, where the idle dips, it looks like the engine...

Use LTFT, STFT, and LTFT+STFT. I make corrections based on what's going on in all of those. LTFT+STFT with weighting based on what I see in the other two. You'll see.

WOT/PE yes wideband. Set...

Yeah add that channel to the log.

Write-entire your original tune back to the car. Open the Lund tune. Set P0604 to No Error Reported. Write-entire the modified Lund tune.

Don't write-entire one of those repo tunes thinking...

VE first because it's easier to see where problems due occur. As fueling gets close you can simultaneously modify the spark tables while tuning VE.

That's good. You'll have even better results if VE is tuned with the narrowbands. Try to get idle rpm below 800.

He went through and deleted all of them because he realized they were garbage.

Yes. MAF and VE need tuned better. Spark needs work, too.

Got a tune to go with the log?

Excellent :)

Ok if you excuse my dumbass moment I can still offer a few suggestions.

Go back into SD and tune the VE table. Use the narrowband fuel trims to do this. Set PE enable to 85kPa.

Lower idle...

MAF looks good. Need to log MAF Hz in order to make corrections. Don't touch VE since you're MAF-only right now. It's not dangerously far off.

Yeah you're right. I copied the entire row like an idiot.

Get the VE table correct.

You didn't put in the right values for Short Pulse Adder.

Nice work. Looking forward to a log.

Idle Adapt (STIT). Short Term Idle Trim.

That's because setting SD on its own won't fix it. The tune is not squared away with incorrect injector data. I can look at the VE and see the shape and values are wrong. You have to understand...

That blows. Be sure to get an entire ACDelco or Delphi sending unit and replace the filter. Not just a pump.

What injectors are you running?

I know. Wrong engine configuration for stated goals, brand new to tuning, and wrong approach. Fortunately, there are pro's on here he can contact who would be well worth it.

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