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259 vs 165 ECM

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Old 05-16-2018, 11:35 AM   #1  
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Hello, Michael's Avatar
Join Date: May 2008
Location: Cicero, IL.
Posts: 252
Car: 1987 Pontiac Firebird Trans Am WS6
Engine: L98
Transmission: T-56
Axle/Gears: 3.70:1 BW M78 9-Bolt Posi

259 vs 165 ECM

Is a 259 ECM easier to connect to via ALDL than a 165? My car has a 165, but would it behoove me to swap it for a 259? I have problems connecting to it for data logging. Are most remans 165s?
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