Error code P1166 is a primary indicator that the ECU/ECM is receiving negative feedback from an O2 sensor or a bad O2 sensor control. Running a Oscilloscope is actually not a bad idea in this case, and if it proves to be an O2 sensor, it is most likely the one behind the catalyst control. The only other thing that comes to mind that may trigger a P1166 is a leaky air intake system, and that can be solved by doing a simple smoke test before you end up taking the sonata to Hyundai. I would definitely recommend doing this first. If it turns out to be a leaking intake, then that will save you a lot of time and money. The reaction that your car is having at this time is typical for a faulty air system or O2 sensory as well.
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Anything is possible but it is unlikely - the error code P1166 is for the primary oxygen sensor.
2009 hyundai sonata p2138
I have the code po441 on my 2000 v6 hundai sonota what do i do
Generic code P1457. EVAP Control system leakage.
Trouble code P1166 means: Gauge control module lost communication with Adaptive Front lighting unit(AFS message)
Error code P1166 is a primary indicator that the ECU/ECM is receiving negative feedback from an O2 sensor or a bad O2 sensor control. Running a Oscilloscope is actually not a bad idea in this case, and if it proves to be an O2 sensor, it is most likely the one behind the catalyst control. The only other thing that comes to mind that may trigger a P1166 is a leaky air intake system, and that can be solved by doing a simple smoke test before you end up taking the vehicle to Hyundai. I would definitely recommend doing this first. If it turns out to be a leaking intake, then that will save you a lot of time and money. The reaction that your car is having at this time is typical for a faulty air system or O2 sensory as well.From:http://tinyurl.com/7ma2e9Expert: Randall
i need code cassette for Hyundai accent 2002 ..please
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.
Trouble code P0501 means: Vehicle speed sensor, range or performance problem
Trouble code P0711 means:Transmission fluid temperature sensor circuit range/performance
Trouble code P0708 means:Transmission range sensor circuit high input