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Brandon18

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InHg. It should match if it's tuned in closed loop,, otherwise desired boost is irrelevant.

its matching. However I really need the BAP I assume, because it is reaching 68inhg which is 33 psi... Have you got an example of a regular BAP you would see?

Does the (MAP - BAP)/2.036 work the same as (DesiredBoost - BAP)/2.036?

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Use the xcal to read the strategy an then use that with advantageIII. Look up the BOM website the BAP of your local area and convert to inHg. Desired boost - boost error defnately not bap! The PCM uses the error term for the PI control so the error tells you how far the actual boost is from where you have commanded it to be. Trans.....won't go into that here but pm me.

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OK, I have deciphered it all.

Now for a couple of questions :)

The wastegate DC is hitting a value of 1 I assume this is 1/0 as in on or off?

I have attached a screen shot, it looks like the wastegate is open (1) early in the rev range (2500 rpm - 3100rpm) which doesnt allow the car to build boost (-3psi - 5psi in the same rev range) yet the desired boost is at 6.7 psi the whole time. Im confused as to why the wastegate would be open the whole time when the boost doesnt actually match the DB... Then at 3100rpm the WG_DC changes back to .87 and boost stats to build.

Does this seem normal?

EDIT: Ahh seems I have interpreted the WGDC wrong - found this - "In short, the higher your WGDC is, the more boost you will generate. It is more indepth than that, but in general terms, this is true."

Sounds like the wastegate being at 1 means it is completely shut.

post-41164-0-95205900-1300835848_thumb.p

Edited by Tobey
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Yes 1 is commading the boost controller closed. See below a car I tuned with a little while back had a Monza cooler and a high flow cat. Commanding 1 to keep the wastegate closed then less once it comes on boost.

post-42762-0-23589600-1300847775_thumb.j

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Yes 1 is commading the boost controller closed. See below a car I tuned with a little while back had a Monza cooler and a high flow cat. Commanding 1 to keep the wastegate closed then less once it comes on boost.

How often does the actual boost match the desired boost?

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