I went and got my injectors cleaned by a local shop. Well they needed to be cleaned but when i got it back my engine light was on. P0453 code came up. I just figured the mechanic forgot to plug the sensor back in but everything looked ok. My truck has a body lift so its real easy to see. My question is should i just replace the sensor or look for something else that might be causing the code to come up? I searched the site but there aren't many topics on this code. Thanks.