Yes I know I need to find a new mechanic, this one is okay when it comes to basic stuff but I don't think he is really good with diagnosics. Anyway, I haven't had the car rescanned yet since the light came back on. I am taking it back to him today. I also asked him to check the tranny because of the sputtering. I had a tune up not too long ago so he said that the fuel filter shouldn't be clogged. I don't know anymore this car just keeps giving me headaches. So both of the codes the P1151 and the P0153 both relate to the two sensors that he said he changed. I will write back later after I take the car in to see if any other codes popped up. Is there anything else I should ask him or tell him to do for the sputtering? Thank you so much for all your help.