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**Victor_PR** · 05-01-2013, 01:38 PM

Saludos Fernando!!

Depending on the ECU your car has, you can benefit from the Stomp test and get a diagnostic code. For this you will need the 173.

Here's a link with more details on the Stomp Test. There may be other benefits that I'm unaware of. Perhaps others can chime in.

Stomp test and why you should have a 173 ECU vs 153. | RTS - Your Total BMW Enthusiast

http://www.rtsauto.com/stomp-test-and-why-you-should-have-a-173-ecu-vs-153/

So you have a check engine light on, and your a backyard mechanic. One of the most useful free tools in your arsenal is what is called the stomp test; this test basically makes the check engine light flash to give you a code, with this code you can determine the fault for why the

Te cuidas hermano!

Kind regards,
Victor

Originally posted by fdovargas View Post

Hi guys,

Looking in the board without luck, I've see different ECU numbers for M20, What is the difference between each ECU # (173, etc etc)? What is the best?

Thanks

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