I have a 2005 Tucson 2.7L V6 with a fuel trim issue. When I purchased the car was told it was an O2 sensor. Had the mass air flow sensor replaced (twice as first was thought to be defective). Had O2 sensor 1 bank 1 replaced as this was a pending code. Had injectors cleaned and there is no detectable vacuum leak from a smoke test.
My mechanic is stumped and doesn't know why it keeps giving the P0170/ P0173 codes.
Currently the LFTF is at 0% and both STFT goes up to +31% at steady highway speeds.
Does anyone have any idea what might be causing this? I have read around the forum but most of the culprit issues have either been replaced or looked at.
Thank you!
My mechanic is stumped and doesn't know why it keeps giving the P0170/ P0173 codes.
Currently the LFTF is at 0% and both STFT goes up to +31% at steady highway speeds.
Does anyone have any idea what might be causing this? I have read around the forum but most of the culprit issues have either been replaced or looked at.
Thank you!