Question Asked: Check Engine Light still on
April 24, 2009, 12:57 PM
I have had an ongoing problem. I have had the codes 171 & 174 for the last few months. I got printouts for these codes, and replaced first the MAS, then the 3 oxygen sensors. I reset the computer and still get the codes. sometimes it is only 171 after reset, other times it is both. One of my mechanic friends said I probably have a intake gasket leak. Is that the next most likely cause?