GoneDiesel
Veteran Member
- Joined
- Jun 2, 2000
- Location
- USA
Today may TDI went into limp mode for about 40 seconds and then snapped out of it. No engine light thrown. I didn't have my laptop in the trunk to check. After I got home there were no codes. What I did notice before this happened I was showing my friend the engine bay and notice a very large air bubble in the fuel line. When I got home the air bubble was not there. Later in the day after sitting a couple of hours a smaller air bubble was present. I have checked for any leaks but can't really see anything suspicious. When a TDI goes into limp mode because the ECU is putting it in limp mode for what ever reason, wouldn't it throw a code or cause engine light to come on? Could the airbuble be the culpret? I have driven it several time today without it happening again. Tomorrow I will check for air bubbles after sitting all night.