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Discussion Starter · #1 ·
This problem been messing with me for 3 weeks now.
Bought an 2005 tsx with 68k on it and the Cel is on for the rear 02 sensor. Reading code p2271 stuck rich. Replaced the 02 and the code came back then Took it to the dealership and they said that the wiring could be bad so they rewired the 02. Drove the car and code still pops up. Had the shop I bought it from put another Emc on it and the code still came on. The exhaust has been completely check by 3 shops and there are no leaks. The 02 sensors are reading but is it normal for the rear 02 to give a flat rate reading? I know the front is wideband. What is the issue with this car?
 
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