ECM change

dventers

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Feb 16, 2024
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middletown ohio
Hello all..as some of you already know i've been dealing with a nothing short of a nightmare build..after installing my engine. Uploading tune..having tune revised a couple times and chasing issue after issue I finally figured out and confirmed the ECM to be my problem...the numbers on mine are 5R3A-12A650-ACD...I found one with the same numbers ..can anyone tell me do I need to have it flashed or will it work as my old one and will my tuner still work with it as well...thanx for any help with this...
 

whitmanink

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Dec 28, 2020
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denver pa
the tunner is married to the old pcm,, i think it has to get unmarried to use with a different ecm,, which i think you have to send it back ,, im not sure tho,, but you defiantly aint gonna be able to use it with a new one and it just be plug and play,, plus pats would need to be deleted or i think or all the key lock ignition stufff would also have to be changed as well ,
 

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