There are no visible exhaust leaks, all the cables look new. Sparking plugs are fine.
Friday, February 21st, 2014 AT 12:00 PM
WALLYR
- MEMBER
- 2005 HYUNDAI TUCSON
- 2.0L
- 4 CYL
- 2WD
- AUTOMATIC
- 100,000 MILES
Since a couple of months ago the check engine light came on, with the code PO133 which indicates that the O2 sensor 1 is responding too slow. I already have replaced the O2 sensor 3 times, the last attempt was with and genuine sensor (OEM), but the light came back on again after a few miles traveled. Then I ran the ECM on a virtual engine, and everything in it is OK.
There are no visible exhaust leaks, all the cables look new. Sparking plugs are fine.
There are no visible exhaust leaks, all the cables look new. Sparking plugs are fine.
