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Hello,

I purchased a Stage 1 cal for my 85 charger a while back. I just found the ecu gives a 53 fault code which says ECU failure.

The unit seems to function fine. I am wondering is this normal to throw this code on a re-caled ecu?

Thank you.
 

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yes, 99% of the recalibrations throw that code. It's simply a checksum.
 

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Agreed, it is the checksum. It's a simple fix for the calibrator actually, not sure why FWDP doesn't just recalculate a new checksum. D-Cal does that for you every time on save if you set it up properly.
 

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I didn't used to do this, but do now. No more explaining code 53 for me!


D-Cal said:
Agreed, it is the checksum. It's a simple fix for the calibrator actually, not sure why FWDP doesn't just recalculate a new checksum. D-Cal does that for you every time on save if you set it up properly.
 
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