ECM Quuestion

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08-21-2007 | 02:21 AM

spidyrmen

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Joined: Jun 2007

Posts: 9

ECM Quuestion

What do the letters mean at the end of the ECM Serv. No. BBMD, OR BBMC, or BDJZto name a few.Also can i use a ECM with the same number but not the same letters? thanx

08-21-2007 | 06:03 AM

Argon

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Joined: Feb 2007

Posts: 2,167

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RE: ECM Quuestion

I assume this for a 95 or older...thats your PROM broadcast code...you can use an ecm as long as the part# is the same,but use your prom

08-21-2007 | 09:40 AM

spidyrmen

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Joined: Jun 2007

Posts: 9

RE: ECM Quuestion

yes this for a 93 chevy silverado 5.7l. does the prom go bad also? thanx for the help

08-21-2007 | 10:12 AM

jcbst12

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Joined: Jul 2007

Posts: 1,855

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RE: ECM Quuestion

The prom will only go bad if the ECM fried it because of a short, (Doubt thats the case) or if it was physically damaged. It doesn't wear out.

08-21-2007 | 02:55 PM

Argon

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Joined: Feb 2007

Posts: 2,167

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RE: ECM Quuestion

tHE PROM HAS THE TRUCKS SPECIFIC INFO IN IT...just move it to the new ecm

08-21-2007 | 05:40 PM

spidyrmen

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Junior Member

Joined: Jun 2007

Posts: 9

RE: ECM Quuestion

thanx for all of the help gentlemen

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