If your diesel’s check engine light is on and you’ve pulled a P245A code, your EGR cooler bypass control circuit might be the culprit. This system helps control exhaust gas temperatures and emissions, ...

Q: I took my car to my mechanic for the check engine light being on. He checked the codes and said it’s an “EGR fault” He said it would be a couple of days before he could get to it. He said I could ...