1992 sc300 ecu

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01-25-14, 06:35 AM

riobanks

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1992 sc300 ecu

So I replaced my ecu out of my 1992 sc300 with a 1993 sc300 but it would not start. Would could be the problem? I put my old one back in and it would crank. Also their is a little metal loop in the back of the ecu box that i did not hook when plugging in ecu. does that matter??

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01-25-14, 07:52 PM

grumpi300

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Yes it does. The ecu has to have the exact numbers on them. I believe they all start with 89661- and from there the numbers change. Each pin in the ecu is different for different year sc's.

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01-26-14, 01:26 PM

Tam4511

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Quote:

Originally Posted by grumpi300

Yes it does. The ecu has to have the exact numbers on them. I believe they all start with 89661- and from there the numbers change. Each pin in the ecu is different for different year sc's.

this is false. All Ecu's are compatible for the same models between 92-94, only 95's are compatible with 95's, 96-98's are compatible with each other, and 99+'s are.