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Re: High HCs at 15 mph 93 ford probe 2.0l
Posted to Emissions Forum on 5/28/2001

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Ken, Have you verified if the vehicle is in fuel control by looking at the oxygen sensor wave form at 2000-2500 RPM. Also verify that the oxygen sensor frequiency is .5-5 HZ at 2000-2500 RPM and that ... Login to read more.