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I have a 2007 Prius. The other day the red triangle of death appeared along with an array of other lights on the dash. Shortly after the car acting like it was out of gas and came to a halt. Before tow came I checked codes and got p2103 which I looked up and it indicated throttle body/sensor/ECM/etc. Dealer checked it, drove it and it ran fine with no error lights, no codes. So, going forward I don’t have much confidence in the car, and will be worried the triangle, et.al. will come back. I’m picking up the car later today and will add a can of Techron hoping the throttle body just needs cleaning. Anyone have experience with this type of thing and/or the p2103 that didn’t show up for the dealer. Thanks in advance
 

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'17 C 4
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towed to dealer. they couldn't find anything! Hasn't done it again, however it is rarely used wife's car....fingers crossed
Two things about that:
Fuel does not flow through the throttle body on most fuel injected engines.......so cleaner in the tank won't help clean it.

A car that is rarely used is prone to weak 12 V battery problems and sometimes bad connections to that battery too.
 
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