ecu reset - Alfa Romeo Forum
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156 t spark

ecu reset

how do you do an ecu reset on an ***** 156?
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Don't know, but on an ALFA 156 you would normally disconnect the battery for around an hour ... making sure you have radio codes, etc.

That doesn't reset it, but it loses the self-learn parameters and starts again.

It will NOT lose any fault codes or clear the management light if lit ... for that you need a diagnostic program: alfadiag, fiatecuscan or unidiag with the appropriate cables (and a laptop!)
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What issue are you having and what model have you got?
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take the + and - lead off of the battery, and hold them together for a few seconds
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ecu , reset

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