I swapped the ignition module from a Buick 2003 3.4L engine to my buick 3.1. car starts and runs ok (a little rough). can i damage things by doing this or are they interchangeable, I

Asked by Jan 24, 2017 at 11:28 PM about the 2003 Buick Century

Question type: Maintenance & Repair

the ignition control module for both the 3.1l and 3.4l are identical in
appearance and all wires and plugs fit. So now my 3.1 is running on a 3.4l
ignition module. Is this O.K.?

1 Answer


If they are exactly the same pats, you will be fine as the ignition is controlled through the ECM (Engine Control Module)

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