Heated oxygen sensors are usually present in the fuel injection vehicles both before and after the catalytic converters to check on the oxygen levels in the air for proper maintenance of fuel to air ratios.
The P0042 code refers to the third sensor downstream from the engine on bank 1, which is on the side of the engine with the #1 cylinder.
What causes problem of HO2S Heater Control Circuit (Bank 1 Sensor 3)?
Failure of Bank 1 Sensor 3
Sensor wiring open short damaged
Open circuit inside Oxygen Sensor or open ground wires to Bank 1 Sensor 3
Corroded or Broken Exhaust System ground strap
Replace/Repair These Parts to Fix OBD Code P0042
Heater Circuit Fuse - Damaged Heater Circuit Fuse affects the fuel delivery as well as the exhaust systems. Visit us for quality fuses and parts.
Catalytic Converter - Excessive amounts of unburned gas caused by a misfiring spark plug or a leaky exhaust valve can cause overheating of catalytic converter. Replace your old catalytic converter now!
Diagnostic Tool - In order to detect the error, one needs high grade diagnostic tools. Visit us today to grab amazing deals.
Exhaust System - Replace faulty exhaust systems and parts as they can be a major reason for flashing of this error in the PCM
More Info About OBD Code P0042: https://partsavatar.ca/p0042-obd-ii-trouble-code-heated-oxygen-sensor-control-circuit-b1s3-solution-o2-sensor-exhaust-system
If you face another OBD Error Code Problem Then Check list of OBD Codes: https://partsavatar.ca/check-engine-light-scan-read-all-obd-2-trouble-codes-p0-powertrain-p1-p2-diagnose-repair-fix-engine-error
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