Electronic Waste Gate Issue

[A90Mat]

****Update: Adjusting wastegate arm to be within 79.5mm-82mm is what fixed the issue.*****

Past weekend I was working on my Supra and had to take off my downpipe, intake system and lower portion of my charge pipe, doing so I had to unplug the sensor for my electronic wastegate. I put it together and took it for a spin, I drove around for around 15 minutes and I parked the car, started it back up immediately after parking it and got a drivetrain malfunction, ran the codes for it and I'm getting the following codes:

120408 - Charging pressure control: Switch-off as consequential reaction.
123432 - Electrical Wastegate valve , adaption: Stop shut, implausible.

Figured I did something wrong and took the car back and redid the intake and chargepipe, car drove fine (actually felt a little more responsive than it ever had, or maybe it was from not driving the car for a couple of days), did a WOT pull and datalogged it, car felt a little down on power and I looked at the log, I was hitting about ~23 PSI at ~80% WGDC when target was 25 PSI. Parked the car overnight and I started it in the morning and got that same drivetrain malfunction/code.

Code is leading me to believe that the wastegate needs to be adjusted and recalibrated, would that even make sense since I hadn't messed with the wastegate? Car worked perfectly fine before the install, so I obviously messed something up during it. Only things that I could think of are that I messed the sensor up somehow unplugging it, or I damaged the wastegate re-installing the intake box since it's a snug fit. Trying to hear any opinions on what I could do, currently between ordering a whole new wastegate assembly and having it installed, or with the current wastegate on the car, taking it to a shop with ISTA and having it recalibrated.

Attached a video of the start-up sequence to show the wastegate arm isn't having clearance issues on startup (made sure to position the downpipe v-band out of the way).

Mods:
Omega 65 2 port kit
Zeitronix flex fuel kit
Boostlogic Catless downpipe
Mishimoto OCC
Tuned on MHD with David Shoup
XHP stage 3

Datalog - https://datazap.me/u/mlechowicz/after-install?log=0&data=4-19

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[rottmore]

https://www.supramkv.com/threads/remnant-performance-omega-65-turbo-kit.15586/post-344026

fuck sake. That took forever to find with all that spam

 

[A90Mat]

https://www.supramkv.com/threads/remnant-performance-omega-65-turbo-kit.15586/post-344026

fuck sake that took forever to find with all that spam

Thanks, I'll try to follow this and redo the wastegate. Just doesn't make sense how it became out of spec, I didn't event touch it

 

[rottmore]

Would wait for a veteran to chime in on how to properly dial it in. I'm on a DAWS and probably wrong, but i thought it was a requirement for the remnant kit to be manually dialed in and calibrated on ISTA.

 

[MYA90SUPRA]

Past weekend I was working on my Supra and had to take off my downpipe, intake system and lower portion of my charge pipe, doing so I had to unplug the sensor for my electronic wastegate. I put it together and took it for a spin, I drove around for around 15 minutes and I parked the car, started it back up immediately after parking it and got a drivetrain malfunction, ran the codes for it and I'm getting the following codes:

120408 - Charging pressure control: Switch-off as consequential reaction.
123432 - Electrical Wastegate valve , adaption: Stop shut, implausible.

Figured I did something wrong and took the car back and redid the intake and chargepipe, car drove fine (actually felt a little more responsive than it ever had, or maybe it was from not driving the car for a couple of days), did a WOT pull and datalogged it, car felt a little down on power and I looked at the log, I was hitting about ~23 PSI at ~80% WGDC when target was 25 PSI. Parked the car overnight and I started it in the morning and got that same drivetrain malfunction/code.

Code is leading me to believe that the wastegate needs to be adjusted and recalibrated, would that even make sense since I hadn't messed with the wastegate? Car worked perfectly fine before the install, so I obviously messed something up during it. Only things that I could think of are that I messed the sensor up somehow unplugging it, or I damaged the wastegate re-installing the intake box since it's a snug fit. Trying to hear any opinions on what I could do, currently between ordering a whole new wastegate assembly and having it installed, or with the current wastegate on the car, taking it to a shop with ISTA and having it recalibrated.

Attached a video of the start-up sequence to show the wastegate arm isn't having clearance issues on startup (made sure to position the downpipe v-band out of the way).

Mods:
Omega 65 2 port kit
Zeitronix flex fuel kit
Boostlogic Catless downpipe
Mishimoto OCC
Tuned on MHD with David Shoup
XHP stage 3

Datalog - https://datazap.me/u/mlechowicz/after-install?log=0&data=4-19

Are you in the remnant performance discord? If not talk to Alec and he can get you in. They have step by step instructions on how to fix this with pictures.

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