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    1990 Coupe, Intermittent problem. Rough idle, dies, rich exhaust

    1990 Coupe, 28,000 miles Vehicle history – Plugs, wires and fuel injectors replaced several thousand miles ago, in 2007, I am not sure why. The rest is original. Problem is intermittent and started last fall. Very rough idle and dies, rich exhaust. I read the ECM codes and then stored car...
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