Originally Posted by rav4lkl
Thanks for replying me but you didn't answer my questions.
I don't have to post message here if I go to car repair shop.
The O2 sensor wires I cut because the new sensor plug didn't fit the old one.
Does anybody know 2 same color wires on O2 sensor can be connected either way in turn? I know they are heat element terminals in the sensor.
P0171 - System too lean. (Probably due to no signal because you cut the sensor off)
P1130 - Air/Fuel circuit out of range. (Probably due to no signal because you cut the sensor off)
P1133 - Air/Fuel circuit no response. (Probably due to no signal because you cut the sensor off)
So what sensor did you replace it with? I ask because as previously stated, if you bought the right part, you shouldn't have to cut anything.
I'm concerned that you have bought the completely wrong sensor and may have used a wideband sensor on in place of the factory narrowband.
This would explain why the check engine light is still on.