Justin Gorder

This is what I had thought from the beginning and was the first thing I checked and since then I've been getting all my voltage readings from back probing the ecu. However taking a closer look at the entire wire again I found one of my connectors was a pin off, causing the clamping voltage to never reach the throttle. I'm happy to say that the throttle now responds fine when closing, almost too fast. Thank you to everyone for the input, and sorry for not double checking the more obvious things earlier.

I haven’t, the current one seems to have aps values that make sense but I’ll see if I can borrow my buddies and try a whole new pedal.

My ticket number is: 22716

I sent the ecu in for inspection and they said that they couldn't find any fault in the e throttle hardware. But plugging it back in i have the same exact problem, throttle blade is perfectly responsive when opening but letting off the pedal it takes its sweet time to close. Just as a recap I've tried a new throttle body, I've also tried bypassing all factory wiring and went straight from the ecu to the throttle with no improvement. I just verified that the ecu is in fact getting 12v from the e throttle relay. So now I'm completely lost again as it seems that ecu is getting power correctly and is just not outputting correct voltages, but the ecu has nothing wrong with it. Any ideas are useful this is making no sense to me.

Okay, thank you!

Okay, how should I go about sending it for inspection?

Yes, so back probing the ecu pins got the same voltage that the other tests did so at -90% motor dc I read 1v from ethrottle + to - 1v ethrottle + to ground .8v ethrottle - to ground

I did some more looking through the logs and found that the aux supply and 5v supply seem to be fine. But i found that aux 10 (ethrottle -) is always at 100% duty cycle and that aux 9 (ethrottle +) changes from 0%-70% following the Ethrottle Dc. So, at ethrottle dc = -28.6 Aux 10 = 100% and Aux 9 =71.4% To me this still doesn't seem to explain why its closing so slowly but is just another indicator that something is wrong.

Yes, constantly varying from about -89 DC to -93 DC and voltage varying from .85v to 1.02v Some codes I’m also getting that might help narrow down the problem: 84: aux9/10 under voltage 71: aux 9/10 supply 72: analog 5v supply Seems like it might be having a problem getting enough power to the ecu or ethrottle relay.

So, I did some more multimeter testing and am having a hard time understanding the results, so I'll just explain what I did as thoroughly as possible. First, if I hold the throttle open and then change ign 8 to none the throttle blade closes but I wouldn't say it springs closed it closes at the same rate it did in the logs. With the multimeter I put the positive lead on the Ethrottle + and negative lead on Ethrottle - and got around 1V. Positive lead on Ethrottle + and negative lead on battery ground i got around 1V Positive lead on Ethrottle - and negative lead on battery ground around 0.8V Car at 12v and throttle blade closed for all of these tests, I repeated the tests on the ethrottle wires in the ecu harness and got the same voltage numbers respectively. I think the wires are fine, but could there be something limiting the voltage in the throttle body itself? or in the ecu? or the ethrottle relay?

Yeah i figured. Ive attached logs and tune. Keep in mind that there may be some weird settings in the tune, im trying to learn how to tune myself. I plan on taking it to a tuner eventually but for now im trying my best. If you see any other settings in the tune that look wildly wrong please point them out so i can work on fixing them. Edit: I have a WRX107x V10 ecu Tune 1.pclx PC Datalog - 2022-04-24 6;05;52 pm.llgx PC Datalog - 2022-04-24 6;04;41 pm.llgx

2006 wrx project car, the throttle body will only work on setup mode because the throttle plate is so slow to close it errors out in seconds. I think my wiring is messed up but I'm not sure how, i hooked a multimeter up to the ethrottle +/- and watched as i opened and closed the throttle. I was getting almost up to 8v when i would wap the throttle then it would level out to just under 2v at wot, when closing it seemed to go to 0v pretty quick but maybe not fast enough. I've been trying to figure this out for weeks but can't figure it out any help would be greatly appreciated.