[Vwdiesel] Simple little TDI question
James Hansen
jhsg at sk.sympatico.ca
Wed May 8 01:07:14 EDT 2002
> So I gather that a 97 Passat will not let me just unplug the EGR?
> Does it require the diode fool-the-computer system or something
> else? I haven't had time but I know that disconnecting that sucker
> is on Dad's list.
>
No, but with Vag-com you can reprogram the adaptation value to make it run at
4% duty cycle instead of it's usual. Note that these modifications still are
within allowable factory tolerances, and therefore are not what would be
considered as tampering with emissions devices. It is still functioning, just,
well, er, um, not quite as much as would normally er, um, be there.... Just do
the following:
Select engine control module, select "login", enter 12233 as the no-longer
secret code, select "adaptation", go to adaptation block 3. It should
display the requested and actual air going into the engine, probably around
250 mg/stroke (otherwise, you are on the wrong screen). Enter 33768 in place
of the default 32768, click "test". Note that the displayed amount of intake
air
changes to around 370 mg/stroke. Then "save". All should be merry, and intake
free of carbonaceous deposits.
-James
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