CadetKitty

I have a 2006 Scion xA and when I started it up and it idled weird for a minute than calmed down and ran fine after that. Only way I can describe it is a sputter.
If anyone else have this issue and know what it is please let me know so I can fix it.


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Battleax

Try adding a good STP fuel treatment in a tank of fuel. This cleans out the fuel injection and the throttle plate. You might need to do this twice. I’ve had great success with STP products.

MileHightC

Mine has done it once or twice over the years and I don't think it's anything to be fixed...I just attributed it to ECM 'cerebral skid' and went on my merry way. That being said, throwing in a fuel injector cleaner (although I would use BG44 over STP every time but it is more expensive but can be found on Amazon) and changing plugs are both easy fixes.
Nothing you put in the fuel is going to do anything for cleaning the throttle plate as fuel is injected far downstream of the throttle plate...to clean that you'd need to use a carb/TB cleaner in a spray can.