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What causes the p1133 engine code to come on my 1998 Chevrolet S10?

Vehicle: 1998 Chevrolet S10

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P1133 CHEVROLET - HO2S Insufficient Switching Bank 1 Sensor 1

You may have to replaced the front O2 sensor to fix the problem.

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

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