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high idle
In message <3.0.32.19971222123958.009058b0@mailserver3.nist.gov> vytas@email.nist.gov writes:
> Everything's according to Haynes(sorry), except for no voltage on turbo
> cutoff valve (blue/black wire).
There is no voltage here unless the WOT switch is closed.
> Any suggestions are welcome.
This is an abbreviated test for the ISV controller in the ur-quattro. I
suspect the 5K is similar, but any deltas are _your_ responsibility. The
ASCII art is of the ISV controller's position in the auxiliary fuse panel,
as copied from the microfiche:
==+====+== ==+====+==
| | | |
+----------+----+------------------------------+----+----------+
| |
| +--+ +--+ +--+ +--+ +--+ +--+ |
| |16| |13| |10| | 7| | 4| | 1| |
| +--+ +--+ +--+ +--+ +--+ +--+ |
| |
| +--+ +--+ +--+ +--+ +--+ +--+ |
| |17| |14| |11| [ ] | 8| | 5| | 2| |
| +--+ +--+ +--+ +--+ +--+ +--+ |
| |
| +--+ +--+ +--+ +--+ +--+ +--+ |
| |18| |15| |12| | 9| | 6| | 3| |
| +--+ +--+ +--+ +--+ +--+ +--+ |
| |
+--------------------------------------------------------------+
(Contact 5 is chassis ground.)
Tests with a DC voltmeter:
14 + 5 - ignition on - Power Battery Voltage
14 + 1 - ignition on - Code input B Battery Voltage
8 + 1 - ignition on
throttle closed
idle switch closed Battery Voltage
Tests with a diode test lamp:
17 + 5 - engine running - RPM from ECU Diode must flash
7 + 5 - ignition on - road speed sensor
left front wheel turned by hand Diode must flash
Tests with an ohmmeter:
13 + 5 - - thermoswitch 800 to 1000 ohms
at 20c, 70 to 150
ohms at 80c
11 + 4 - ISV attached - ISV resistance 3 to 8 ohms
Tests for cars with air conditioning:
6 + 5 - ignition on - E87
air conditioning on Battery Voltage
2 + 5 - ignition on - N25
air conditioning on Battery Voltage
--
Phil Payne
Committee Member, UK Audi [ur-]quattro Owners Club