Problem with my Superduty.
2011 Ford F-350 dually. 67k miles bought new. When I get in truck and go somewhere the "service engine indicator " is on. And stays on. Next time stays off. Dealership says fault code P204B Ran poi...
Forum Discussion
Check your grounds and wiring harnesses too for any chaffed spots from engine vibrations. Intermittent problems like that are often voltage or wiring related.
