"BOOST" 1.4l Turbo - Chevy Trax Forum
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post #1 of 42 Old 12-05-2018, 06:27 AM Thread Starter
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"BOOST" 1.4l Turbo

Anybody else here monitors their Turbo boost? I had an 80 km trip last night and reset the boost gauge before I left. Readings after getting home kinda baffled me. I know it's a small turbo but I would have thought it would put out more boost. Maybe condition weren't right but it rarely exceeds .5 of boost and I have no check engine light (yet). Maybe I should try and do a boost leak test...



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post #2 of 42 Old 12-05-2018, 01:49 PM
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I think 8lbs is about it. Edit: Not sure if the red/orange markers are max/min values. Edit again: I think 18lbs was the max before the dump valve opened. The 6 cups of coffee hasn't kicked in yet.

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post #3 of 42 Old 12-05-2018, 03:47 PM Thread Starter
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Under what condition did you get 8psi? Maybe I'm not driving it hard enough. So I must have a plenum leak because most I ever get is .5psi of boost and vacuum well it goes as high as -25.


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post #4 of 42 Old 12-05-2018, 04:34 PM
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The first time I used Torque Pro the idle vacuum was not normal. There's a setting somewhere in Torque Pro to get the correct reading, I think it was altitude or a different sensor or something. After I found it, it looked normal on boost and vacuum. The 8psi was on moderately hard acceleration.

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post #5 of 42 Old 12-05-2018, 05:50 PM Thread Starter
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Okay I'll check for possible settings.


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post #6 of 42 Old 12-05-2018, 07:12 PM Thread Starter
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That's what it was, being in Canada I set Torque to metric system and it automatically switched from PSI to BAR and HG/in so I changed both back to PSI and now boost reads some more reasonable numbers. Just coming up the hill it read 6.2 PSI of boost. Now it makes sense.




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post #7 of 42 Old 12-06-2018, 05:43 PM
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This is interesting to me. Is it a Cell phone app? Or is it somehow accessible in the vehicle menu? Something tells me it is an App.


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post #8 of 42 Old 12-06-2018, 07:04 PM Thread Starter
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Torque Pro App for Android. I have it installed on my Android radio also on my cell.





You will need an bluetooth OBDII adaptor such as;




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post #9 of 42 Old 12-06-2018, 07:36 PM
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Well that's pretty cool. Can you choose the gages you want? I would want oil pressure too. So, since I don't have an android or any useful cellphone it's out for me. But thanks for the info.


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post #10 of 42 Old 12-06-2018, 09:22 PM Thread Starter
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Yes you can choose from a whole list of data, even HOČ sensor voltage.


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