PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

How long does it take to program the ECM

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Old Oct 29, 2008 | 09:35 AM
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Exclamation How long does it take to program the ECM

I m wondering how long it takes to program the ECM if you already have the tune made up and you just need to load it to the computer.

The reason i ask is cause my laptop will stay running now for about 45 min maybe more with out being hooked to a charger(tuning software says not to tune hooked to the charger).
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Old Oct 29, 2008 | 09:56 AM
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approx 90sec for a cal only and 2min for a full flash of the OS. Full flashes are only required if your changing the OS.. Either way, you'll be fine.
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Old Oct 29, 2008 | 11:28 AM
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Yep, it doesn't take too long at all.

I have the same problem, old battery killing the life of my laptop. My solution......I bought a cheap inverter. Just think of it as insurance.

Losing power while uploading a tune is not fun.
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Old Oct 29, 2008 | 11:47 AM
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Well what will i need just a quick cal or a full flash? All i am doing is just tuning for my new heads.

Also i was looking in my software last night and i didnt see anything for the EGR system or the AIR system that i could turn off or delete out of the system, where would it be?
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Old Oct 29, 2008 | 12:43 PM
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Write calibration only on an 02 Z28 would take 22-30 seconds using HP Tuners barring any connection issues.

Write entire on an 02 Z28 would take 1m50s-2m10s using HP Tuners barring any connection issues.

http://www.hptuners.com/help/vcm_edi...menu_write.htm

"Write Calibration Only" is the regular, safest and fastest way to rewrite the VCM. ALWAYS use "Write VCM" when making regular tuning changes.

The "Write Entire" and "Write VIN/Tunerlock/VATS" options are special features to be used by advanced users only.
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Old Oct 29, 2008 | 01:30 PM
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What tuning software do you have?
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Old Oct 29, 2008 | 02:09 PM
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I use LD1 Edit. I am thinking of throwing my tune in there tonight so i can see if my car runs good enough to drive.
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Old Oct 30, 2008 | 09:23 PM
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My cal flashes take about 30-32 seconds.
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Old Oct 30, 2008 | 10:11 PM
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Cool i got it to work yall.
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