ow do I check my ecm to see if it is a 350 ecm - Hot Rod Forum : Hotrodders Bulletin Board
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Old 12-27-2006, 08:16 PM
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ow do I check my ecm to see if it is a 350 ecm

The writing on the box says

SERV. NO. 1227747
863341 M710612516
ADTR

Suppose to be out of a Suburban 2wd 350 auto Can anyone tell me if this is right ?.. or a way to open it and read the chips to identify thanx

Last edited by ghomer; 12-27-2006 at 08:28 PM. Reason: FORGOT PROM CODE
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Old 12-27-2006, 08:35 PM
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Get the Broadcast Number off of the EPROM. It is a four letter code similar to the one pictured below. The EPROM is the one with the light blue cover.



Knowing the broadcast code will help determine your question.

Ed
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Old 12-27-2006, 08:46 PM
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Re eprom 350 or not..

It has ADTR the small chip has

16060837
DELCO ADTR 3432
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Old 12-27-2006, 08:51 PM
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The other ECM I have here that may have got mixed up is

1227747 ACSU which comes up as a 350 tbi LO5 1990 chev van but I got it from an 88 suburban
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