OEM Remote Start for Toyota Supra - No ECU Unlock or Additional Hardware Required

[BIMMER-REMOTE]

Is this remote start software update/coding reversible?

Yes, it is.

Sponsored

 

[BIMMER-REMOTE]

Video added to first posts from one of my customers ->

 

[ky.supra]

Regarding the exhaust flaps, the vehicle’s software is being updated to enable remote start, and unfortunately, this is not something I can control. Before releasing the activation, I performed several tests on a Supra. The vehicle we tested had its exhaust flaps fully disabled, which is why we did not encounter any issues.

I believe this may be the only downside, and it can be easily addressed with an additional valve controller or through the vehicle’s tune, either of which can be added afterward.

You should do more tests on a completely stock Supra that doesn’t have anything disabled and push out an update to fix the exhaust flap issue.

Edit: Telling us to buy an aftermarket valve controller when our factory valve worked fine before you coded remote start in our cars is inexcusable and who knows IF a tune can even fix it.
Please do more tests with stock supra's with nothing disabled or any coding done to it as well as tuned supra's on MHD+, BM3, Ecutek, etc.

 

[lolinternets]

Agreed. I’d buy this today if it weren’t for the exhaust flap thing.

 

[BIMMER-REMOTE]

You should do more tests on a completely stock Supra that doesn’t have anything disabled and push out an update to fix the exhaust flap issue.

Edit: Telling us to buy an aftermarket valve controller when our factory valve worked fine before you coded remote start in our cars is inexcusable and who knows IF a tune can even fix it.
Please do more tests with stock supra's with nothing disabled or any coding done to it as well as tuned supra's on MHD+, BM3, Ecutek, etc.

I understand your concern. Unfortunately, extensive testing across 5–6 different vehicles and configurations isn’t something I currently have access to.

So far, I’ve only received reports about the exhaust valve behavior from two people—you and one other person—which makes it difficult to determine whether this is a universal issue or something related to a specific model year, vehicle software version, coding configuration, or other factor.

I understand you’re not happy with the current situation regarding the exhaust valve, especially since it was working as expected before remote start was coded. We definitely don’t want to dismiss that concern. At the same time, we believe having a working remote start solution is still a valuable feature, and we’re trying to better understand the valve issue with the information and vehicles available to us.

EDIT:
From what I've tracked, valves issue seems to be a problem only with older Supras (250KW/340hp stock one). 285KW/382hp don't have that problem so I think it might be software itself related.

 

[STV3]

From what I've tracked, valves issue seems to be a problem only with older Supras (250KW/340hp stock one). 285KW/382hp don't have that problem so I think it might be software itself related.

Nope, mine is a 2021 with the 6 port B58 382hp and I have the valve issue along with significantly reduced decel burbles.

 

[lolinternets]

I understand your concern. Unfortunately, extensive testing across 5–6 different vehicles and configurations isn’t something I currently have access to.

So far, I’ve only received reports about the exhaust valve behavior from two people—you and one other person—which makes it difficult to determine whether this is a universal issue or something related to a specific model year, vehicle software version, coding configuration, or other factor.

I understand you’re not happy with the current situation regarding the exhaust valve, especially since it was working as expected before remote start was coded. We definitely don’t want to dismiss that concern. At the same time, we believe having a working remote start solution is still a valuable feature, and we’re trying to better understand the valve issue with the information and vehicles available to us.

EDIT:
From what I've tracked, valves issue seems to be a problem only with older Supras (250KW/340hp stock one). 285KW/382hp don't have that problem so I think it might be software itself related.

I have a 2023 manual stock (a few things coded with BimmerCode) I’m willing to pay and be the guinea pig to help figure out the exhaust flap.

 

[BIMMER-REMOTE]

Nope, mine is a 2021 with the 6 port B58 382hp and I have the valve issue along with significantly reduced decel burbles.

Burbles are only affected by the fact that the software is newer.

I have a 2023 manual stock (a few things coded with BimmerCode) I’m willing to pay and be the guinea pig to help figure out the exhaust flap.

This might be downside of this mod (or upside, depends who you ask) - that flaps stay open.

 

[lolinternets]

Burbles are only affected by the fact that the software is newer.


This might be downside of this mod (or upside, depends who you ask) - that flaps stay open.

I’d like to retain flap functionality as I’m trying to stay as stock as possible. So it’s probably a deal breaker if that’s not possible.

 

[STV3]

Burbles are only affected by the fact that the software is newer.

Is this non US software? I know outside of the USA the flap functions differently aka stays open most of the time and I believe the burbles are significantly less present on Supras in other countries.

 

[ky.supra]

Is this non US software? I know outside of the USA the flap functions differently aka stays open most of the time and I believe the burbles are significantly less present on Supras in other countries.

For remote start to work, he coded our US Supra to a Z4 (Euro).

MHD just got back to me so I'm going to do more tests and flash the DME with remote start again later today when I'm off work.

 

[STV3]

For remote start to work, he coded our US Supra to a Z4 (Euro).

MHD just got back to me so I'm going to do more tests and flash the DME with remote start again later today when I'm off work.

Ahh that makes sense and explains the quirks. Yeah I'm interested to hear how that goes because I plan on tuning my car soon, so if I can just fix these issues via tuning I'd be content.

 

[BIMMER-REMOTE]

I’d like to retain flap functionality as I’m trying to stay as stock as possible. So it’s probably a deal breaker if that’s not possible.

I understand that. Unfortunately no other workaround for now

 

[BIMMER-REMOTE]

Its a little modified SWFK version to allow Supra to work with remote start.

 

[nanaisu]

Ah, okay, I think I'm understand...

Flow is modded SWFK/SWFL for an EU Z4, which you can enable 1CR VO remote start option (ala, your magic sauce)... Since the Supra has BDC3, its possible and shouldn't break anything.

Then forged FSC to enable the remote start feature. Then some coding to enable it in the head unit.

I guess this raises the question, is there any other fun stuff you could do if it thinks it's a Z4, like M style HUD?

If I'm following right, clever!

Sponsored