Recent content by Nornrv530

I have a 99 4l that can't breath. Codes for o2s, MAF, iac, etc. I replace iac, mad, egr and o2s with all new parts. But every time I connect the Maf, it kills the engine. Runs pretty good with it off. What could be causing this. No vacuum leaks. Tried old and new sensors, cleaned old one...