> What if there's a big bubble in my radiator and the coolant doesn't > even reach the sensor there? I haven't bled the system yet. That's > next.
Still like to know what the VW 1301 output is so I can test the gauge > and use the Bentley troubleshooting flowchart.
VW1301 is apparently a variable resistor device on a 12V input. There are a few mentions of it in the archives. Ken Lewis did a test with a decade resistance box and came up with some numbers, but I think he had the "fuel full" and "fuel empty" numbers reversed. The markings on the VW tool are a German engineering mystery. The proportion seems to be 5:3 in terms of "VW1301 number" : "resistance in ohms". Ken himself even mentioned the 3/5ths thing at the time. What it comes down to is: ("tool" means VW1301 tester dial setting) tool = 50 ----- 35ohms (tank reads full, temp reads hot) tool = 320 ---- 210ohms (tank reads empty) tool = 510 ---- 340ohms (temp gauge reads cold)
-- > > bcnu - Grungy (Baytown, TX) opinions are just that.obviously. > 60 dddPanel 69 Bug 90 Vanagon 00 Audi A6 Avant 05 Jetta Wagon TDI > g r u n g y AT g r u n g y DOT c o m >
-- John Bange '90 Vanagon "Keine Bange, wir holen die Zange!" |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.