I have a '15 Fiat 500 Abarth automatic transmission that I drive with manual shifters 100% of the time with ESC off. After taking it the car to the dealership to replace the throttle body (they also updated the PCM) my car simply doesn’t run the same. It feels like a huge lost of power. At highway speed, I can no longer drop it to 5th and pass anyone up. When I do that at WOT the car or RPM no longer surges and it seems like there’s a rev limiter at about 3500 rpm. The car has been at the dealership for 2 weeks now and they insist the car drives fine even tho they acknowledge that the data proves otherwise. Anyways, long story short I took so log with the Torque App and saw somethings that I thought was unusual. So my questions are:
Cruising at highway speed at about 75ish mph, 2500 rpm, my throttle position is at WOT and the throttle body opening is at 25.5%. Is this correct?
The throttle body data shows that it can only open 25.5% maximum. Is that correct? Shouldn’t it be 100% (or close to) if I’m at WOT?
My pedal position is at around 30% and the throttle position is at WOT. Is this correct also?
Thanks in advance for helping me. I just want to know if there is something unusual there and make sense of this. I know for sure my car definitely does not drive the same before taking it into the dealership. Maybe someone out there can educate me on how these devices work in relation to each other. I have researched hard on the internet and it only explains what the cars does at WOT and not in relation to the other devices (e.g. cruising at highway speed the throttle opening should be etc.)