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Thread: Winter is here...and my cx5 turbo is now a 2.0!

  1. #1
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    Winter is here...and my cx5 turbo is now a 2.0!

    Similar performance to the 2.0. Woot. Yay for cold.

  2. #2
    Registered Member yrwei52's Avatar
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    Arrow Winter is here...and my cx5 turbo is now a 2.0!

    Quote Originally Posted by Unobtanium View Post
    Similar performance to the 2.0. Woot. Yay for cold.
    Yeah we have 22°F at 7:30AM this morning. Wife’s CX-5 which parked on the street has no issues to start up and drive. What happened to your turbo charger?

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    Registered Member 7eregrine's Avatar

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    Pretty sure he's saying his car runs like shit now that it's cold which is exactly the opposite of how a turbo charged engine should work.

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    The turbo should work fine in the cold. I wonder if the Mazda system basically runs as a 2.5NA until the car temp gets up to normal temp. And with your short driving times, it may never do it.
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    Quote Originally Posted by dougal View Post
    The turbo should work fine in the cold. I wonder if the Mazda system basically runs as a 2.5NA until the car temp gets up to normal temp. And with your short driving times, it may never do it.
    The power loss is not related to engine operating temp.

    I really would like an explanation from Mazda about this.

    I still think it might be related to the awd system “predicting” traction loss and pulling power.

    The engine should be able to safely make the same amount of power when it’s below freezing. It definitely doesn’t though.
    Last edited by 2001birdowner; 11-12-2019 at 10:40 AM.

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    Quote Originally Posted by 7eregrine View Post
    Pretty sure he's saying his car runs like shit now that it's cold which is exactly the opposite of how a turbo charged engine should work.
    This. No boost. It's just a N/A 10.5:1 compression 2.5L engine at this point basically.

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    Quote Originally Posted by dougal View Post
    The turbo should work fine in the cold. I wonder if the Mazda system basically runs as a 2.5NA until the car temp gets up to normal temp. And with your short driving times, it may never do it.
    You mean my 30 mile commute? Exactly how long SHOULD it take to warm up?

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    Quote Originally Posted by Unobtanium View Post
    This. No boost. It's just a N/A 10.5:1 compression 2.5L engine at this point basically.
    The computer must be tracking boost. Would be great to see that data somehow.

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    Quote Originally Posted by 2001birdowner View Post
    The computer must be tracking boost. Would be great to see that data somehow.
    I'd really love for someone to datalog it!

  10. #10
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    Arrow Winter is here...and my cx5 turbo is now a 2.0!

    Quote Originally Posted by Unobtanium View Post
    Quote Originally Posted by dougal View Post
    The turbo should work fine in the cold. I wonder if the Mazda system basically runs as a 2.5NA until the car temp gets up to normal temp. And with your short driving times, it may never do it.
    You mean my 30 mile commute? Exactly how long SHOULD it take to warm up?
    Is it only happening to your 2.5T or is it the norm for every 2.5T?

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    That would piss me off. The turbo trims from Mazda were a strong contender before we settled on the gas version of the RAV4. I’d be pretty upset if the performance of our new car dropped that bad in cold weather.

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    I've had my GTR since last Feb and have not experienced this problem. Tomorrow is forecast to be ~~20 degrees here, so I'll pay special attention during my commute.

  13. #13
    Work in Progress sm1ke's Avatar
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    Quote Originally Posted by Unobtanium View Post
    I'd really love for someone to datalog it!
    I can try? I have the Torque app and a bluetooth OBD2 module. I just haven't played around with it much yet.

    Quote Originally Posted by yrwei52 View Post
    Is it only happening to your 2.5T or is it the norm for every 2.5T?
    I'm testing to see if this happens on my CX-9 as well. I did a 0-60 pull at -16c (3f) last night, and it did feel a little less powerful.

    Does anyone know of any video editing apps that would allow me to edit video to allow two video files to play in the same frame? This would make it easy to see the difference between the two videos (if there is one).

  14. #14
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    Well, when is gets cold and you lose power in your turbo car.. that's some bad ecu tuning. Try resetting the fuel trims (unplug car battery)

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    I totally forgot that some have this issue. It was 8 degrees this morning and there was no noticeable drop in power. I will try and pay more attention to this, but it should be obvious going off of what some are claiming. I have to quickly merge out into traffic at one point of my short commute and have not been let down.

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