having 100% throttle

[Kodename47]

Originally Posted by bur****jp

What do you have done to the car? I wouldn't worry about it unless you're boosted.

See above, I wouldn't worry about it at all...

[86drift]

Originally Posted by Kodename47

I'll chime in with my latest test using ECUtek. This is a 3rd gear WOT pull:



However I also logged desired TPS Voltage and actual TPS Voltage. Both of these are 4V for the entire range. So I've come to the conclusion that the throttle isn't actually shutting at all, but for some reason the ECU shows that it does.

80% is actually WOT as the throttle plate can actually go 20% past WOT.
So, not sure why throttle angle value tapers down (I know how to stop it) but it makes no difference to the actual throttle position and performance.

[Kodename47]

Originally Posted by 86drift

80% is actually WOT as the throttle plate can actually go 20% past WOT.
So, not sure why throttle angle value tapers down (I know how to stop it) but it makes no difference to the actual throttle position and performance.

80% is just how ECUtek shows WOT. The throttle doesn't open more than that, it actually makes sense if the sensor is reading 4v on a 5v sensor. I'm intreagued how you prevent the ECU to stop showing the tapering, do tell as it may have something to do with calculations etc.

[davidog3]

Actually I’ve been taking my car to the track every month once a month for the last 6 months, and I always had 100% throttle, im running UEL 85 tune from OFT , but this month I change the battery on the car the day before the track day , and I noticed I got only 90% thorttle and is still like this and my times at the track actually got worse by two seconds, maybe a lot of variables on my time but still I didn’t feel slower , I dont know why is only 90% now. Any suggestions?

[steve99]

Originally Posted by davidog3

Actually I’ve been taking my car to the track every month once a month for the last 6 months, and I always had 100% throttle, im running UEL 85 tune from OFT , but this month I change the battery on the car the day before the track day , and I noticed I got only 90% thorttle and is still like this and my times at the track actually got worse by two seconds, maybe a lot of variables on my time but still I didn’t feel slower , I dont know why is only 90% now. Any suggestions?

were you logging same parameter


Their are several throttle parameters like accelerator pedal angle, throttle plate angle