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okay i got the codes out and its giving me code 29 i replace the sensor already and am still getting the same code( and i did clear the code by taking off the EFI fuse and also disconnecting the negative on the battery ) am getting really bad MPG and i need help
Thanks
plant87
What year is your sc300 or sc400?
Code 29 is the sub o2 sensor, so you replaced the one on the cat right? The 2 on the exhaust manifold are the main ones.