P0172 do i need to replace MAF sensor?

Question

I have a 2003 Cadillac Escalade EXT with only 34k miles on it. As soon as I bought it I put 93 octane in it and came up with multiple codes. Including Fuel too rich and MAF.  Does this mean  have to replace parts? AutoZone told me that if I put 87 that the Engine light may go off. I only filled it with 93 octane 1 time. Please help!

Answer 1

P0172 System too rich Bank 1

The fuel you used is okay to put in and use, There several area that should be check and that would be the airfilter, replace if plugged, If you have a MAF sensor code that should be resolved the MAF sensor measure the amount of air entering the engine, You may just need a MAF sensor.