Desired IAC airflow vs. calculated airflow rate

[Illegal Vette]

I noticed there was a 3 gms/sec discrepancy between these 2 and am wondering what I can do to get them closer. I'm using the 12613248 OS with a 1 MB PCM to control a stroked 2002 Z06 engine with ported heads and a 228/232 .615/.600 116.5+3 camshaft and a ported throttle body. Yesterday I experimented with the IAC effective area yesterday and was able to get it closer by moving all the cells down 5 or 6 places but that doesn't seem like a good solution to me. 2041420415

[statesman]

Yesterday I experimented with the IAC effective area yesterday and was able to get it closer by moving all the cells down 5 or 6 places but that doesn't seem like a good solution to me.

It might not seem like a good solution to you, but it's the correct solution.

[Illegal Vette]

I'll give it a try then, thanks for your reply!

[Illegal Vette]

That did the trick, thanks for your help!

[joecar]

Good job :cheers:

[joecar]

BTW: you should fix these:



Out of Range calibration summary: 06:02:56 pm, Wednesday Nov 09, 2016

Engine Calibration.Fuel.Mixture
{B3614} Hot PE Mode Coolant Temp Threshold, was out of range when loaded.

Engine Calibration.Fuel.Lean Cruise
{B3636} Vehicle Speed Lean Cruise Enable, was out of range when loaded.

Engine Calibration.Fuel.Trim
{B3803} Maximum Coolant Temp to Enable LTFT, was out of range when loaded.




To fix them (there is a quirk in the V7 tunetool), you have to set them to max-1 or min+1, save file, exit tunetool, reopen tunetool and set them back to intended max/min value, and save file.

[statesman]

That did the trick, thanks for your help!

Enjoy! :cheers:

[Illegal Vette]

Thanks for that, it worked just as you said!