Supra in harsh winter

[Oudy4143]

Hey guys,

I'm new to this forum and I just had a few concerns and I think this is the right place to ask them. Im from Calgary, Canada and right now it's -33 degrees Celsius /-27 degree Fahrenheit. I have a 2021 Supra 3.0 that's been tuned and has an air intake, downpipe and exhaust. Recently I turned my car on in the garage (non heated) and left it on idle for about 5 minutes and tried to do a baby rev just to check and my car wouldnt rev. The engine was still cold (one bar), has anyone else experienced this? Should I be worried? Is this supposed to happen?
I'm open to all suggestions, sorry for the long post. Thanks guys!

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[Kyuen16]

First of all, welcome to the forum!, and I'm sorry I won't be much help but, There's a forum about supras not revving after starting, this may be helpful to read if you haven't already

https://www.supramkv.com/threads/wouldnt-rev-after-starting.6460/

it seems like it is still an ongoing problem, fingers crossed that someone can help you out though

 

[Benjilis]

Try to rev it in neutral. In park the rpm rests higher

 

[Oudy4143]

Try to rev it in neutral. In park the rpm rests higher

I tried both in neutral and park it just wouldn't rev and if I press harder revs to 5-6 k

 

[Oudy4143]

First of all, welcome to the forum!, and I'm sorry I won't be much help but, There's a forum about supras not revving after starting, this may be helpful to read if you haven't already

https://www.supramkv.com/threads/wouldnt-rev-after-starting.6460/

it seems like it is still an ongoing problem, fingers crossed that someone can help you out though

Thanks man I was just reading up on this. Alot of people have similar issues and I guess I'm on the same boat.

 

[Benjilis]

I tried both in neutral and park it just wouldn't rev and if I press harder revs to 5-6 k

How about revving it after driving around in sport mode?

 

[Oudy4143]

How about revving it after driving around in sport mode?

So this wasn't a common issue during summer had it happen maybe once but now at this crazy weather I won't get to drive it. It was fine the other day I drove it parked it and revved fine. Even after startup it would rev fine. But today I just started the car up and didn't get to drive had it on idle for about 5 mins and tried wouldn't rev.

 

[Benjilis]

So this wasn't a common issue during summer had it happen maybe once but now at this crazy weather I won't get to drive it. It was fine the other day I drove it parked it and revved fine. Even after startup it would rev fine. But today I just started the car up and didn't get to drive had it on idle for about 5 mins and tried wouldn't rev.

BMW M series cars have a feature where the car won’t let you go past a certain rev limit until the cars engine is at proper temperatures. I’m assuming they used the same technology on these cars. The reason this is a feature is so people can get in their car and drive and not have to warm it up. I think that due to your below freezing temperatures, this is what you’re experiencing.

 

[Paolo]

A sensor (no idea where) is sending erroneous data to ecu causing car to go into limp mode.

Now Toyota need to get off their fat a$$ and start fault finding otherwise a recall is on the cards.

 

[Oudy4143]

BMW M series cars have a feature where the car won’t let you go past a certain rev limit until the cars engine is at proper temperatures. I’m assuming they used the same technology on these cars. The reason this is a feature is so people can get in their car and drive and not have to warm it up. I think that due to your below freezing temperatures, this is what you’re experiencing.

Thanks man that makes a lot of sense
I really hope that is it.

 

[Paolo]

BMW M series cars have a feature where the car won’t let you go past a certain rev limit until the cars engine is at proper temperatures. I’m assuming they used the same technology on these cars. The reason this is a feature is so people can get in their car and drive and not have to warm it up. I think that due to your below freezing temperatures, this is what you’re experiencing.

Doesn't happen on 2020 supra or is less the case.
Sensor related on 2020 built supras.

 

[Oudy4143]

Doesn't happen on 2020 supra or is less the case.
Sensor related on 2020 built supras.

I have a freind with a 2020 he had a similar issue and he did say it highly possible because of the cold.

 

[Paolo]

It's not cold related. It's sensor related.
Start watching after 7min.

 

[Oudy4143]

It's not cold related. It's sensor related.
Start watching after 7min.

That's the exact issue. I'm trying to understand if this will cause other issues. I read the other forums and there seems to be no fixing it either.

 

[Paolo]

You need to contact your dealer and Toyota in your country.

They are avoiding this issue hoping it is swept under the carpet.

Good luck.

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