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CSI code may be due to a wiring change 700 1990

posted by  oldguy on  Mon Feb 14 12:53 CST 2011
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last visit: Mon Sep 1 13:35 CST 2014
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The source says the resistance to ground for the CSI to ECU should show an open circuit, i.e. inf resistance. So from earlier response this may be OK. i.e. 7 Meg ohms to ECU#32 is good enough for being equivalent to an open circuit.

Wondering why the injector harness ECU ground #18 is only showing 10K ohms? to ground.

The idle valve harness to ECU ground point #33 is showing 73K ohms? to ground.

They should both have a higher resistance to ground unless there is a problem with the ECU or some other path to ground?






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New Troubleshooting Idle Valve and Cold Start Injector error codes-ECU resistance to ground [700][1990]
posted by  oldguy  on Sun Feb 13 23:01 CST 2011 >


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