Boost pressure and pedal percentage

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golfputtputt

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	Boost pressure and pedal percentage « on: May 12, 2017, 12:27:01 PM »

so i noticed something odd while logging some other variables the other day. Going from WOT to half way PT rapidly lifting, I found the requested boost would drop to 0 but actual boost would rest around 4.5 psi until I fully lifted my foot off the throttle. Anyone know whats going on here?

Working with OEM tune, fuel, air, timing all stock.


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SB_GLI

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	Re: Boost pressure and pedal percentage « Reply #1 on: May 12, 2017, 01:04:38 PM »

that's some pretty intense boost spikes for a stock tune. I think you have hardware issues.

Also, the pressure sensor is before the throttle plate, therefore the pressure at the sensor can be higher than what's actually in the manifold when the throttle plate is not fully open.


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golfputtputt

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	Re: Boost pressure and pedal percentage « Reply #2 on: May 13, 2017, 08:00:31 AM »

Gotcha about map sensor.

also, oops, i didnt notice i had done stuff to my bin. I changed the top values of irl/iop to tt225 values to see what occured and forgot to revert changes.
Would doing that cause these spikes?


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