Is this bad???
#2
first step, especially if the car runs fine is to clear the codes and see what comes back
P0102-MAF problem. try MAF cleaner, check wiring, replace MAF sensor
P0172-Bank 1 too rich. air leak or more likely related to the MAF problem
good luck
P0102-MAF problem. try MAF cleaner, check wiring, replace MAF sensor
P0172-Bank 1 too rich. air leak or more likely related to the MAF problem
good luck