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Re: adding ? Posted by Andrew [Email] ![]() ![]() In Reply to: Re: adding a resistor to Pressure transducer?, Kevin K ![]() |
Thank you..
If I knew exactly how to do this I wouldn't need to bother anyone :-)
Car is Son's 87 9kt (Wife refuses to allow 'fooling' with her 900t.
Base boost is 5.5 +- recently set..recent tune and filters, everything else is set to specs and working well.. measured boost peak is 12psi.. holds at approx 10+... OK.. but more is better?
There is some annoying APC solenoid chattering .. at startup idle untill engine is warm.. about 5 mins or so. Pressure Transucer has been 'opened' and checked/ adjusted to specs re resistance at various pressures...IE: 8 ohms at atmospheric, 85ohms at 11 psi, 150 ohms at 16 psi (point where "fuel cutoff" currently occurs on my switch) basically at centre of 'ranges' at all pressures.
All for the sake of avoiding buying a new Transducer (son is Student with little 'spare' coin.. but that applies to myself as well I suppose:-)
We will replace Transducer IF absolutely necessary..eventually.
Fooling with APC trim pots is planned only after I get this 'transducer' issue resolved.
Perhaps (obviously?) I am confused re Resistances..(I have been accused of being 'inumerate') So; if I add 300ohms in parallel to the transducer any ideas why no visible/palpable Boost increase ?.. to be fair have not yet done a "Boost Run" with the real Boost gauge to actually test for improvement..
posted by 209.52.7...
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