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What is code 43 1992 Chevy S10 blazer?

DTC P0043 - Oxygen (O2) Sensor Circuit Slow Response (Bank 1, Sensor 3)

Definition: The oxygen sensor circuit slow response code indicates that the oxygen sensor is not responding quickly enough to changes in the exhaust gas oxygen content.

Possible Causes:

- Faulty Oxygen Sensor

- Exhaust Leak

- Wiring Issue

- Damaged ECM

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