possibly bad ECU

[Hondata]

The TPS sensor is not reading. Since you've tried another ECU and it works, it most likely is the TPS input in the ECU. In that case you'll need to swap ECUs.

[brak54]

So your saying the hondata is fine. That I would have to get a different ecu and swap my s300 to the new one??

[Spunkster]

correct

[wagon-r]

Can you swap in the stock ECU to drive the car to the tuner?

[brak54]

here i messed with it some more tonightt.
this is with 2 different TPS sensors both at the right volts .45 at idle as you can see the TPS % raises very slowly when I’m holding the pedal all the way down which I’m guessing is the reason on feather throttle the car was stalling over 2000 rpm

here is the gas pedal is all the way to the floor the whole time u can see it going very very slow

and again only does it with the black box ecu

https://www.youtube.com/watch?v=0hDvBB- ... e=youtu.be
and
https://www.youtube.com/watch?v=Z1QbZiO ... e=youtu.be

[brak54]

KStuned said i can send it in but they check them 2 times before they ship so "the ecu isnt the problem."

[brak54]

Can you swap in the stock ECU to drive the car to the tuner?

im thinking its a bad solder or something or bad contact on a solder joint on the ecu

Over the weekend i have tried a 3rd TPS but when clicking read at full throtttle the TPS % climbs none stop slowly. I double checked all the volts and there all good, i ripped out the wiring harness over looked it for anything messed up wires i put in a old wiring haness to just check and same thing. the TPS reads slow. then i put the original wire harness back in the car and checked volts all the way back from the edu to plugs in the engine bay. all wiring is good. i have went through any possible perimeter that cut trigger a cut off and no change. I also have a couple friends look over the calibrations to double check i didn’t miss anything. i know it has to be a issue with the hondaata unit or the ECU itself I’m not trying to waste anyones time but day one when i first plugged the ecu in it has done this. the only thing i have done that stopped the issue is putting in the stock ECU and when i calibrated the TPS manually so it sees 1-3 % when the car is idling, than when i raise the rpm to over 2000 rpm it does not cut off. was it possibly there is a bad contact with the soldering causing it to be a lazy pickup on voltage?

[brak54]

i was emailed back today and KStuned still thinks it is a calibration issue. but no matter the calibration the TPS sensor when fully open shouldnt take 20 seconds to climb to 70ish percent then get there and drop and raise 3-5%