trants4md, the lack of power under all engine temperature conditions smacks of a clogged catalytic converter IMO. The economy gauge going into the 'red' when accelerating seems normal as it's sensing vacuum. I take it that the needle is responding more dramatically than 'normal' under acceleration. I have to go right now, but later I'll search for a simple method to diagnose a plugged catalytic converter.

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Fred Hoelzle