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Q: engine light on 2003 Chevrolet Silverado 1500

had code po133 on my truck so i changed all o2 sensors and
reset light and tried to get it inspected, they said computer
wasn't ready told me to drive it about a hundred miles and
bring it back,well i did this and light came back on with code
po 134 what else could be wrong
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there are times when the o2 heaters are bad that they blow a fuse as well. check all the fuses to make sure the circuit is complete.

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