[urq] urq computer repair
Tom Huschilt
huschilt at ix.netcom.com
Tue Apr 20 13:08:54 EDT 2004
if i remember correctly, the current sensor requires 8v excitation and gives
a linear output of 0 to 5 volts from vacuum to max boost, at least in my ecu
(i can check my notes later to be sure).
Omega makes lots of pressure transducers. possible candidates are the '140
Series' pressure transducers, with say 0-30psi range, Part # PX142-030G5V,
which needs 8 volts excitation and gives 1-6 volts output. I found this in
an old catalog but there must be newer versions with up-to-date data on
their website...
tom
-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com]On
Behalf Of Phil Payne
Sent: Tuesday, April 20, 2004 1:44 AM
To: urq at audifans.com
Subject: Re: [urq] urq computer repair
> Does have a source for a new pressure transducer
> inside the early urq computers?
> Audi dealer says there is no part listed except for
> entire ecu unit.
The transducer is a Hitachi-unique part that was never sold as a component.
Both Scott Mockry
in the USA and Roger Galvin and I in the UK have successfully sourced
alternatives - I think
Scott found a Bosch equivalent and we found a guy in Rugby who could
"profile" a standard
transducer with a coupld of op-amps. The cost was horrendous - around
GBP110 (USD180) so we
didn't take it further.
I don't know what Scott is doing now - I sourced some 3kPa transducers in
the UK for him a
couple of years back.
--
Phil Payne
http://www.isham-research.com
+44 7785 302 803
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