Quote:
Originally Posted by tankertoad
I have an AA tune and need to flash back to stock for emissions. I have the Simon cable and the file but AA specifies this requirement for the flashing procedure:
"Put a battery charger on the car (voltage above 12.5 volt Amps above 10 A) stable voltage. Do not use a trigger or battery jumpers (those aren't powerful enough to hold stable voltage for long periods)."
Has anyone done this with a consumer grade charger? Some say over 10 A charging but only 2-6 A maintain and I don't know which number to use. I don't want to fry my ECU and don't want to purchase a roll around shop level charger for a single application.
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Did you remove hardware like headers? Should not need to flash back to stock if the AA tune is just that. Most places don't have the ability to detect a simple software tune. Check with AA
With a good battery I've flashed with no charger attached but you can't have any accessories running like your stereo or AC blowers.
In the old days, using stupid flashing tools I monitored the battery drain at 20-25 amps. So if you have some crazy slow flashing tool and you don't trust your battery, that's what you need.