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Re: Slow 02 response 2013 Silverado 5.3 4X4
Posted to Technical Discussion Forum on 1/28/2020 1 Reply

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Hi Louie.

This depends on the sensor location, operating condition [idle, load, etc.] as well as YMM. For example, the heaters might be turned off under load, when the ECM detects that the sensor is... Login to read more.

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