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Testing Cold Start Injector (Valve) 200 1980

posted by  c_j_mooney on  Sun Feb 5 11:48 CST 2006
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last visit: Wed Sep 14 17:39 CST 2011
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Thermal time switch sounds like the culprit. It switches positive, ground should be constant at the CSI connector. The voltage drop to 3v is indicative of the function of the bimetallic heated element in the switch - but I'd guess the contact points in the switch are burned. The voltage should be battery voltage for the first 8 seconds or so, then drop cleanly to zero. Check resistance across the switch (cold). Should be at or almost zero resistance. Hot engine, the resistance should be infinite as the switch should be fully open. And when open only one pin should have any continuity to ground (via the threaded portion of the switch).
--
Chris, Dartmouth NS Canada 70 M-B 280SE, 83 245DL, 84 244 turbo, 90 780 turbo, 92 VW Golf, 90 740 Rex/Regina






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New Testing Cold Start Injector (Valve) [200][1980]
posted by  Ten Sleep  on Sun Feb 5 08:36 CST 2006 >


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