How do you no when you need to replace the ECM?

ANONYMOUS

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2000 MERCURY VILLAGER
130,000 MILES

Sunday, December 23rd, 2012 AT 6:25 PM

1 Reply

ASEMASTER6371

MECHANIC
52,797 POSTS

During the diag process, it may fail to control the needed outputs? Never assume this piece is bad till confirmed by someone who knows how to check. It fails for a reason ind if it is not found, then the new one will most likely fail as well.

Roy

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