Hey Guys. I just did a 5.7 swap on my 2003 Blazer and unfortunately my check engine light is. It runs well, but I have codes regarding to the cps/distributor I set the timing many times and made sure it is the 0 - 2 range and code is still present.

FYI

I still have the old V6 MAF sensor in.

Have the 0441 computer flashed to a 02 chevy express van.

Also have multiple 02 sensor codes saying it is not present.



Forgive me if this topic was discussed many times, I did briefly look through the 17 pages of this sections and nothing came up to help me out.

Any help is greatly appreciated!