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I have a mazda 3 5 door with a 2.5l
The car all of a sudden pegged a 2k idle with no action when I step in the gas. I can drive the car but only to a speed of the 2k idle...there is no response when I step on the gas.

Codes:
p0123 throttle positioning sensor/switch
p0223 throttle pedal positioner switch

I had the car in a shop and they replaced the whole foot pedal assembly
I brought the car home and replaced the complete throttle body with throttle positioning sensor
Both OEM parts.

i started the car and it was at 2k.
I then shut off the car disconnected the battery waited a few minutes.
I started it and it was a perfect idle with full action on the gas pedal. I thought it was fixed.
I placed it in drive and it went right back to a 2k idle with no pedal and the codes appeared again.
guy next store tried to clear the codes but they came back on in a few seconds.
we reran the codes and the same 2 appeared...

BUT i just replaced them....what the heck is going on....dont know where to go or what to check....PLEASE HELP!!!!
 

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yes , i got the p2100 diag from mazda, tps is new, no codes for pedal and scanner shows sensors in pedal read as you move the pedal. Diag for the p 2100 says to check for b+ from pin 2a of pcm, key on should have 12 v , which i don't have, says to replace ecm, which i did , but still no 12 v .. I'm thinking maybe a pcm ground issue? but i can't find a pin out or connector end view with both the pcm connector wiring so i can check them..
 
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