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Re: [T3] An idea for calibrating the manifold pressure sensor.


> Yes but 'scopes and signal generators are massivly expensive.  I could
> buy dozens of rebuild pressure sensors from Bosch for the price.
>

Maybe it's time to speak nicely to your old school (or kid's school, or
local school?), and for a donation to funds, I'd have thought they might
lend a sig gen and oscilloscope!

> This gives me another idea.  How about ajusting the idle with the
> virgin MPS in and then puting in the monkeyed one and ajusting it
> until the idle matches.  It seems logical.  Oppinions?
>

Depends on what change happens - if there's only one position where the idle
is the same, and it changes significantly for a small adjustment, you've
probably got the answer.  Isn't there a garage with gas-testing equipment
who might offer a more comprehensive comparison?  The answer to correct
adjustment is in the correct balance of exhaust gases.

> Anyway I put the virgin on in and now it dies when I let my foot off
> the gas.  I assume I can fix this just by tweaking on the idle
> ajustment screw.
>

Or it might need a timing adjustment.

Dave.
UK VW Type 3 & 4 Club
http://www.hallvw.clara.co.uk/
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