Well I have had my ez efi 1.0 system for years and love it. No real issues until today. I was driving and my truck did a loud backfire and shut off. Not good, no steering in a truck with 42" tires. It cranks over but will not start. It throws an o2 code right away and the light flashes on the module. The truck sat for appr. 2 months and there is a bad fuel smell from the throttle body and header when I removed the O2 for inspection. I have been driving it for a couple of days now after repairs and it has run excellent. Any help is appreciated.