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Old 08-28-2008, 01:23 PM
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Default ECU
How do i know what ecu i have. i keep hearing a-box, m-box, your momma's box. what's up? Help me out.
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Old 08-28-2008, 01:25 PM
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Look at the last letter on the ECU that will determine what "box" you have.
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Old 08-28-2008, 01:25 PM
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Default three ways to check...
1) open ECU tray, look at ECU, read the last character -- That's the letter of the box you have.

2) plug in a VAG-COM, click Engine and see what ECU code comes up

3) figure it out by looking <a href="http://s4wiki.com/wiki/Generations">at the S4 wiki</a>
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Old 08-28-2008, 01:35 PM
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Default So this is an H box, right?...
<center><img src="http://pictureposter.audiworld.com/113022/img00230.jpg"></center><p>
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Old 08-28-2008, 01:36 PM
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unless it was recoded to an M-Box, yes.
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