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Discussion Starter · #1 ·
I have an 04 elantra gt sedan , My code reader gave several codes, p0501 p0102 and p1166, The last code, I dont have any idea as to what it is, Can anyone help me??
 

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P1166 = O2 Sensor System - Lambda Controller at the Limit

Possible areas of problem =
- PCSV
- Air leakage
- Fuel pressure
- Injector
- Spark plug
- Front HO2S
- ECM

All three could be tied together, does the car have any symptoms when you drive it?
 

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Discussion Starter · #3 ·
Thats just it, The car runs great, No problems or issues, So, I dont know what to think..... I do appreciate all the input you have given. We did find a broken speed sensor at the front wheel, which will be replaced. Then will go from there. Thanks again
 
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