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Re: P1133,P1153:Insuficent Switching
Posted to Technical Discussion Forum on 8/15/2013 1 Reply

Checked TIS web and latest calibration is already loaded to PCM. What can we tell about light Brown color in Oxysgen Sensor element. Removed plug and see the color [2007 Chevrolet Suburban 1500 LS, Ignition Photo] What can we conclude about how this engine is ... Login to read more.

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