How I improved my MPG - 2010 Gen 3 IV

Good to hear! Nah the car has been egr free for a long time now and it runs like normal on all trips. After getting that death rattle for a while go ahead and change your spark plugs. Knock/misifire for extended periods of time really eats the tips off of the spark plugs which can make you misfire easier or more. Every knock is a point towards a head gasket replacement so glad you got it figured out before it added up to one.

 

Wow do you think I need a inverter or egr just got new batt 12v and 2700 greentec batt new cells still sluggish

 

No, you missunderstood...
If the 12v battery is getting old, or is bad, the inverter will work harder and longer
to charge the 12v battery. If they hybrid battery was bad, the engine will run more trying
to charge the hybrid battery.

 

Try this reset