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Your injector data is now good. I'm adjusting your O2 switch points which will affect fueling a little bit, so flash in the attached tune file and do a Calc.VET using trimming for CL and wideband for PE. When you get that done, let me know and we'll move on to your airflow.
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Long work week. Finally got to the car. Attached is the "BEFORE" log and the resulting tune from the CALC.VE process. The VE table i just hit smoothing once after pasting. MAF table needed some hand blending and smoothing above 7000hz. I have not taken a log after.
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Okay, now let's look at your airflow. Log the same parameters as you were logging in your last log but add the following to your list...
GM.IAC
GM.IAC_STD_DMA
GM.IAC_STPN_DMA
GM.IAC_LTD_DMA
GM.IAC_LTPN_DMA
GM.IAC_SUM_DMA
Don't worry if you go over 24 channels... fast frame rate is not important for this.
Do this log with your a/c off. Log a warm up in gear from a cold start. Just sit there in gear with your foot on the brake. When the engine is fully warm, shift into park and then blip the throttle once (that's just so I have an easy to find marker when you shifted into park) and let it idle in park for a couple of minutes. It's easy to log, but painfully boring.
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I asked you to log GM.IAC_SUM_DMA but you logged GM.IAC_SUP_DMA instead. Do another warm up log in gear like the last one, but this time include GM.IAC_SUM_DMA in your log and get up to full operating temperature before shifting into park.
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Finally got the log with correct pids.
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It's looking better already. Airflow should line up reasonably good with this update.
Do another warm up log in gear, like you've been doing.
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Alright got the latest log right here.
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Ah, you're running a GenIII... I was looking for GenIV and/or GenV logging the pid SAE.LAMBDA
( sorry for not be clear )