LA to Magnum swap, which ecm to use?

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Old 04-19-2015 | 03:03 PM
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unruler's Avatar
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LA to Magnum swap, which ecm to use?

Want to put a 5.2 from a Grand Cherokee in my truck. Now i heard all kinds of horror stories about the Jeep ecm's security system kicking in when the rest of the Jeep isn't around anymore.

Can i use ecm's from Dakotas/Durangos here?
Old 04-19-2015 | 04:47 PM
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What year, make model of truck? What motor does it have now?
Old 04-20-2015 | 04:11 AM
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Yes you can as long as the motor has what that ECM is looking for (which they all should). Just make sure its a 5.2 ECM from a Dakota, Durango or Ram.
Old 04-20-2015 | 09:35 AM
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I've been told it's "not the motor" it's the security system in the column stuff talking to the ECU. I've been told there's a company that (for money) will unlock them. Sorry I don't pay much attention to this. If I ever run into this, I'd likely put either Megasquirt or a Holley HP EFI ECU into the thing.
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