Just died while driving

What is your question?

I have 05 kia sorento with 201k, it has been running a bit rough but thought it was due to small exhaust leak which threw o2 sensor code. Driving home, it died in front of house. Found harmonic balancer loose causing loose belts, pulled, checked and reinstalled it and belt, will crank but no start? Noticed fuel pump not turning on but will if short relay pin socket. I'm at a confused point as to what to check next? Everything I want to check requires alot of parts removal. I just replaced the plugs a week ago, and to remove all intake parts to get to plugs and coils it a bugger. Not sure how to check the crank or cam sensors or if if could be in computer. Checked on good scan tool, no codes, it does in real time show rpms so I dont believe its crank or cam sensor? So any help would be great.

How long has your 2005 Kia Sorento had this problem?

It happened 2 days ago, pushed into garage to work on