Driving my '13 Honda Fit home on the interstate when I suddenly realized I was slowing down. Still had electricity and power steering just no reaction to the gas pedal. After getting the car towed home it will start but stalls out as soon as you try to move it, like it has zero torque. Noticed a small engine stutter at idle speeds (that seemed to resolve after the car warmed up) in the two weeks preceding. During the final death throw it showed a blinking engine light and the traction control light. Any ideas?

 

Vehicle Stability Assist / Traction control (VSA) disables when you have a Check-Engine-Light (CEL), so that's nothing new.

Did you check the spark plugs? If lose and allowing by-pass (intake / exhaust), engine is hurting itself. Fix ASAP. Any unusual valve noises or less than usual (valves might be too tight - not closing)? How many miles?

 

With almost a quarter million miles on my Fit...247K. I would never call it 'unfit'.

 

Same, at 315k and got 5.4l/100km today driving from up north back to Toronto.
Hopefully it isn't too serious/costly.

 

This is a case where I use my Blue Driver OBD II scan tool. I'm not affiliated with them but for the ~ $120 USD, it has figured out a lot of issues like this for me.

As long as I am not violating the terms of this forum, here is a link to the scanner I have. Again, I am not supported by these guys in any way.
https://www.bluedriver.com/products/...iver-scan-tool

 

As has already been suggested here, first check the OBD II port with a scan tool and see if there are any trouble codes stored there. If no codes, I'd check all fuses in your two fuse panels and see if there are any blown fuses that would have disabled a circuit- possibly creating your problem. This can be done quickly with the key in the on position and the use of a common circuit test light. While checking the under hood fuses/circuit breakers near your battery, make sure the positive battery cable is tight. A loose battery cable can cause a myriad of hard to trace problems. If still nothing out of the ordinary, I'd start looking at your fuel pump possibly starting to fail. Good luck.