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Have a p1133 code replaced all of the o2 and exhaust gaskets.

Vehicle: 1998 Chevrolet s10 2.2 4cly

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Hi there,

If replacing the O2 sensor hasn't solved the issue, it's possibly a wiring issue. Here is some info for you.

P1133 CHEVROLET - HO2S Insufficient Switching Bank 1 Sensor 1

Read more: https://www.autocodes.com/p1133_chevrolet.html

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