Very weird ps_w values

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masterj

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	Very weird ps_w values « on: October 04, 2014, 01:48:56 PM »

Hi, guys!
Need your help on this very weird issue. Most of the time I use ECUxPLOT to filter logs by wped = 100%, but today I've tried to check logs based on TIME and found that ps_w are extremely low while in light throttle or part throttle.

Please checkout my log and look around 75-100s. ps_w goes down to 250!

And here's log (for some reason I can not attach it).
https://www.sendspace.com/file/7i0dvs


« Last Edit: October 04, 2014, 02:16:28 PM by masterj »	Logged

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phila_dot

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	Re: Very weird ps_w values « Reply #1 on: October 04, 2014, 02:40:22 PM »

ps_w is modelled intake manifold pressure...


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masterj

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	Re: Very weird ps_w values « Reply #2 on: October 04, 2014, 02:53:11 PM »

Quote from: phila_dot on October 04, 2014, 02:40:22 PM

ps_w is modelled intake manifold pressure...

oh ok

Ill have to fix this then... I have moved to different file and there are a lot of sensor and other adaptations. I guess I have wrong model here...


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masterj

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	Re: Very weird ps_w values « Reply #3 on: October 07, 2014, 05:17:01 AM »

One small question: is this including vacuum?

ambient pressure + boost/-vacuum ?

In other words if my ambient pressure is 1000mBar and vacuum on deceleration is -700mBar then ps_w is 300mBar, right?


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phila_dot

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	Re: Very weird ps_w values « Reply #4 on: October 07, 2014, 06:03:48 AM »

This was my point, it is modelled intake manifold pressure. The intake manifold is not always pressurized and values below ambient pressure are completely normal.


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