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Old 09-23-2018, 09:16 PM   #1
Mond
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Join Date: Nov 2006
Location: San Bruno, California
Posts: 4
Exclamation PCM help

I installed a salvaged PCM today to replace mine in my 2003 Mach 1. I have a few questions I'm hoping someone can help me with...

1) My car started up right away, no issues. Everything I read said I had to get it "programmed" or "flashed" before it would start, and so it would match my keys. Do I still need to do either of those since it's starting up with no issues?

2) I plugged in my 'Carmd' post install, and it read out the same errors as my previous PCM. Is that even possible? Could it just be the carmd already had the errors stored and since it's not the best tool it didn't read anything new?

Thanks for all the help. I've dealt with the "Catalyst Monitoring" pretest always being in "not complete" even though I've driven thousands of miles and followed Ford's guidelines to a T on completing the pretest, so I can't get my Mach to pass smog since it's always "not ready to be tested." A shop recommended replacing the PCM so I'm hoping this will fix the issues.
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