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International Automotive Technicians Network
Re: Catalyst Temp Measurement & Efficiency Testing
Posted to Emissions Forum on 2/10/1998

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I use this method only as a quick test. If it does not pass this test I will then run the car on a scope at 1500 rpm - (warmed up) kill one cylinder and take a reading of the H.C. (air inj disabled) O... Login to read more.