Hey guys, I’m having a bit of confusion about my check engine light.
I just had my catalytic converter replaced. My check engine light came on, we checked what was wrong, and tried two cans of sea foam that didn’t help, so we had to replace it.
After that, another light came on, this time “P0446” or “Evaporative Emission Control System Vent Control Circuit Malfunction” right as I was about to leave my mechanic’s shop. My mechanic reset it, which also cleared all of the OBD drive cycle readings. Just a few miles later, not long enough to fill up all the drive cycle readings, the check engine light came back on.
My question is: assuming the light is on by mistake and there isn’t actually anything wrong, do I have to drive long enough for all of my drive cycle readings to be filled up again, before my check engine light will turn off? Or, after my mechanic reset the check engine light, should it have stayed off even if the drive cycle readings hadn’t been filled up again?
This is kindof a hypothetical question… I don’t really believe my check engine light is on by mistake. But my dad and I disagree on what my mechanic meant when he explained how the drive cycle counters work.
Thanks, I hope this made sense!