so....i've replaced all the ball joints tie rod ends front hubs rear wheel bearing,axel and replace abs sensors on the front with some from the junk yard....now i need to get this check engine light off and abs light off.. i have have codes for p0420 p0440 p0102 my blazer has 235,200 on her so iam sure stuff needs replacing..thankx

 

Check the DIY section for the diagnostic charts for atleast the P0420 & P0440 codes.

P0102 is a MAF sensor code. You can clean the MAF sensor. I would recommend cleaning it first seeing as how it is a quite expensive part.

 

thankx i will check those out