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Search is down... Car is overboosting at lower rpms and going into limp mode

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Old 03-12-2009, 06:13 PM
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Default Search is down... Car is overboosting at lower rpms and going into limp mode

Since AW search isn't working, I tried so search some other forums and couldn't find much..
My car is overboosting (~18-20psi) only at lower rpms before the K03s run out of steam.
I'm getting code for P0441 Evap. Emissions control system, incorrect purge flow.

I also got a code for 'boost pressure- upper limit reached' (can't remember the number and didn't write it down like an idiot).

Can anyone tell me where I should start looking (or is it related to the chip)?

Oh, The car is an 01.5 S4 with Labree DPs, and a custom 3'' exhaust from the downpipes back with no cats, AMS chip, and Forge DVs.
Old 03-12-2009, 06:32 PM
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n75?
Old 03-12-2009, 06:40 PM
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N80? Part of EGR system
Old 03-12-2009, 06:59 PM
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Default hmmmm... i would suspect a failed check-valve in the fuel evap purge flow.

you know.

****ing emissions systems cause so many ****ing problems.

global warming my ***.
Old 03-13-2009, 07:56 AM
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Check valve is an easy DIY fix.
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