Quote:
Originally Posted by rfmaster
When measured with a DVM between engine ground TPS reference voltage (circuit 416, Gray wire) should be 4.75 to 5.25 Vdc. At Idle, TPS signal (circuit 417, Dark Blue wire) back to ECM should be 0.20 to 0.95 Vdc, but typically 0.50 to 0.60 is considered a norm.
ECM supplies 450 mV bias voltage - this may be different were you place you ground lead. This value maybe as low as 320 mV.
//RF
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Thanks for the information.
It has been over 10 years since I have worked on a computer controlled carbureted system. It’s getting hard for me to recall this information. The manuals I have for these old systems are training manuals with very general specifications. I don’t have access to service manuals that old any longer.