2020 5.7, 154K miles
I realized a while ago that I had not seen the 'eco' light come on anymore. Over the last month, I have kept an eye on it, and have not seen it come on once, not even on roads where it previously would.
I checked for OBDII fault codes, and there are none. No lights on dash. I does seem to idle a little lumpy as well.
Any suggestions on what could cause this?
I realized a while ago that I had not seen the 'eco' light come on anymore. Over the last month, I have kept an eye on it, and have not seen it come on once, not even on roads where it previously would.
I checked for OBDII fault codes, and there are none. No lights on dash. I does seem to idle a little lumpy as well.
Any suggestions on what could cause this?
