Question about 1999 Chevrolet Silverado 1500

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Chip My trucks Service Engine Soon light comes on when I put in a chip.

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It will, the chip generally "tricks" the computer into thinking more air is coming into the motor, so it dumps more fuel into the motor. The outcome is a rich exhuast, which causes the 02 sensors to give a different reading than what the air sensor is giving. So the computer will read as if there is a problem.

Posted on Aug 07, 2008


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