Misfire after the SCPI to MFI conversion?

It's a 1998 GMC Suburban C1500 5.7L Just replaced the old style injectors because it had a misfire on cylinder 5. Did a full tune up which helped but didn't solve the problem. I did the conversion because found out there was a recall and the kit was a big improvement, according to many reviews. After I... show more It's a 1998 GMC Suburban C1500 5.7L Just replaced the old style injectors because it had a misfire on cylinder 5. Did a full tune up which helped but didn't solve the problem. I did the conversion because found out there was a recall and the kit was a big improvement, according to many reviews. After I finished it fired up but now has a misfire in cylinder 1. Runs a bit rough so now I'm puzzled as to why it would get worse??? If you got tips or a bit of info, thanks!
2 answers 2