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ECM replacement

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ECM replacement

Postby JCBATCH » Wed Jan 25, 2023 7:04 am

I have a 1989 Trooper with the V6 engine “LL2” and 5 speed transmission “M75”, but it does not have the ECM. My question is, will an ECM from a 1991 Trooper with V6 engine “LL2” and automatic transmission “RQM” work as a replacement?
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Re: ECM replacement

Postby geeves » Wed Jan 25, 2023 5:50 pm

Is that the 3.1 v6? That is a chevy engine so you might have more luck getting the correct ecm from a chev. Thinking about this though isnt that v6 a carburetor engine? Does it even need a ecm?
Your 5 speed has no ecm so the ecm from an auto will not do anything
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: ECM replacement

Postby JCBATCH » Fri Jan 27, 2023 6:35 am

The Trooper has the GM 2.8 V6 with TB carb.
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Re: ECM replacement

Postby geeves » Fri Jan 27, 2023 5:12 pm

ok you know more about the usa models than me.
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: ECM replacement

Postby BroNZ » Fri Feb 03, 2023 5:30 am

What do you want to get by adding an ECM?
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