I have a 2003 ford f250 superduty that has a check engine light

Hello, which engine do you have in your F250? Which transmission? A failure code related to the output shaft speed sensor will never cause an engine stall or misfire. Testing will have to be performed related to engine performance and running condition, and then also regarding the speed sensor you speak of. A diagnostic tool will be needed to verify component operation, output of data and troubleshoot related circuits. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops