Heated Oxygen Sensor Control Circuit Bank1 Sensor2
symptoms
Other than the MIL light illuminating you may not notice any performance issues.
cause
A short in the O2 sensor heater circuit or the sensor itself
A faulty O2 sensor heater
Wiring or connectors are broken or frayed to the sensor or relay
Bad PCM or ECM
The fix
Correct wiring short or loose connector found in inspection.
and/or
Replace the bank 1 sensor 2, O2 sensor
A person can read the fault codes on a Hyundai Sonata by connecting an OBD II code reader to the vehicle's computer. It displays all the errors detected, as well as a brief description.
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basically, p 1080 is a fault code that faults many codes, it faults codes that is a code for a fault, when you get a faulty code you need to un fault it with a code called p 1080, which is a fault code that measures fault codes!
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Hook up a laptop with the appropriate software to read Cat fault codes.
The light is illuminated because the ECU has picked up a fault on the engine management system, and has stored a fault code. You need to diagnose & rectify the fault for the light to be extinguished.
Because there's an intermittent issue which needs to be addressed. You need to have the DTCs (fault codes) read to find out which codes you have, what your active codes are, what your inactive codes are, and how many counts of each fault you have.
TAke it to auto Zone They will read the codes free.
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Identify the fault/problem. Repair or replace