I get a p0202 code on my 05 buick. Replaced injector still having the same problem, wiring was ok.

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anonymous · Answer 1 · 2017-03-12T17:16:41+0000

Not very likely, see the diagnostic procedures below

Buick 2005 Lacrosse CSX 3.6 p0202

Buick 2005 Lacrosse CSX 3.6 firing order picture