370z TT - 17psi boost randomly pulling TPS voltage? (pics)

braydo25 · 07-09-2018, 05:15 PM

Hey guys, working with tuner on this so I'm sure it'll get quickly resolved. But for my own curiosity's sake I'm wondering what's going on here. We're doing street tuning on my built TT 370z, we're up to about 17psi of boost and everything is looking solid aside from some weird TPS voltage dips (Very similar to what TC does to pull power) even though traction control is off?

Have any of the built TT guys seen this? Do you need to disable more of the TC system than just hit the "Off" button in the cabin for higher power levels? Or is this indicative of something else. When this happens we aren't seeing any ignition correction or knock whatsoever, so it seems to be something the ECU is intentionally doing?

Pull log: https://datazap.me/u/braydo25/log-1531287375?log=1

braydo25 · 07-11-2018, 01:35 AM

Still seeing this occasionally - did more tuning today on 19psi, happened again during one pull.

Elmo370z · 07-11-2018, 02:19 AM

Wire knocked?

braydo25 · 07-11-2018, 02:29 AM

Not sure what that is?

Here's the log for anyone interested - https://datazap.me/u/braydo25/log-1531287375?log=1

braydo25 · 05-05-2019, 03:47 PM

Ended up being boost failsafe being set too low for anyone that was curious. Woops. lol

SouthArk370Z · 05-05-2019, 08:42 PM

Quote:

Originally Posted by braydo25

... Do you need to disable more of the TC system than just hit the "Off" button in the cabin for higher power levels? ...

The button doesn't totally disable traction control. There is a sensor inside the console that needs to be modded.

07-11-2018, 02:29 AM	#4 (permalink)
braydo25 Base Member Join Date: Apr 2012 Location: Tacoma Posts: 67 Drives: Nismo z34 Rep Power: 13	Not sure what that is? Here's the log for anyone interested - https://datazap.me/u/braydo25/log-1531287375?log=1 Last edited by braydo25; 07-11-2018 at 02:31 AM.

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07-11-2018, 01:35 AM	#2 (permalink)
braydo25 Base Member Join Date: Apr 2012 Location: Tacoma Posts: 67 Drives: Nismo z34 Rep Power: 13	Still seeing this occasionally - did more tuning today on 19psi, happened again during one pull.

07-11-2018, 02:19 AM	#3 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	Wire knocked?

05-05-2019, 03:47 PM	#5 (permalink)
braydo25 Base Member Join Date: Apr 2012 Location: Tacoma Posts: 67 Drives: Nismo z34 Rep Power: 13	Ended up being boost failsafe being set too low for anyone that was curious. Woops. lol