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MotorvateDIY Video: Easy Idle Air Volume Learning

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Old 08-10-2018, 09:27 AM
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MotorvateDIY
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MotorvateDIY Video: Easy Idle Air Volume Learning

For those who have struggled to get the "Idle Air Volume Learning" after cleaning the throttle bodies, here is an easy way using a free app:
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Old 08-10-2018, 12:42 PM
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Sweet thanks!!
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Old 08-10-2018, 04:32 PM
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Glad to help
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Old 08-10-2018, 07:58 PM
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@ MotorvateDIY Good find. The permissions don't look too bad either. I run a firewall on my device (rooted), and any new app must explicitly be given network (lan, wifi, or mobile) access.

So, anyone clean their TB's lately and use this app to reset?
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Old 08-12-2018, 02:39 PM
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It's a sunday afternoon and I have nothing better to do.

Car is almost 7 years old, ~30K miles. No, I didn't clean the TB's, that will be a project for another day. Figured it would hurt to recalibrate things after this much time/mileage. Did the 2 initial resets then the idle air volume. Follow the instructions closely. Among other things, it's vital the electrical load be as minimal as possible. Was closely watching the rpm as the car warmed up to ~180F. Rpm was relatively consistent but did have a peak every once in a while that could be felt. Once the relearn was performed, it was very steady. Slight fluctuations between 638 to 650 rpm were noticed in the readout but not felt. I think 12 rpm is the small rpm detectable either by the sensor or a result of A-D conversion.

Placebo or the result of the relearn.....? We'll see if there's any change once I actually drive the car someplace.

Also noticed when the ac is turned on, idle rpm jumps to about 800 and the fans kick on right away (thermostat as temp is ~195F). It then slowly comes back down.

I did the whole thing with the phone in airplane mode. With the app running for 5 or 10 minutes, a message did come on that internet is required to continue using the app. Closing/reopening the app reset the timer. Also, when conditions are met, the reset should occur before the counter reaches 200. If it's going beyond that, there is some issue.

Note, I used a PLX kiwi BT dongle. This is the original one I got a number of years back (2011 or 12). They now have version 2 and 3. 3 is on sale for $85 from the mfg https://www.plxdevices.com/Kiwi-3-OB...7346002832.htm .

Other dongles probably work too, but back then I had lots of timing issues with the generic ones and eventually got one.
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