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-   -   ow do I check my ecm to see if it is a 350 ecm (

ghomer 12-27-2006 08:16 PM

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

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

edge 12-27-2006 08:35 PM

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.


ghomer 12-27-2006 08:46 PM

Re eprom 350 or not..
It has ADTR the small chip has


ghomer 12-27-2006 08:51 PM

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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