If you can limp that blazer to a local Advanced Auto, most of them have a unit you can plug in yourself and read codes with their prospective meanings.
In my opinion, I think it could be your fuel filter. It also could be a mapping sensor as well most likely the O2 sensore on your exhaust.
This sensor tells the onboard computer what your fuel mixture is like and allows for changes in timming and so on to correct fuel variences.
Sunday, August 16th, 2009 AT 3:31 PM