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1988 745......ECU oxygen sensor voltage. 700

posted by  Nahtanha on  Sun Jun 20 11:34 CST 2021
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last visit: Tue May 20 10:10 CST 2014
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Anyone know what the voltages of the ECU oxygen sensor connection is just reading the voltage with the O2 sensor disconnected. I seem to remember the ECU was .5 volts. My wire voltage from the ECU is showing .2 volts. Might be time to swap out the ECU. ? Anybody like to tests their 740 ECU O2 wire connection with the O2 disconnected ? I'm having trouble dialing in my "flashing" test light. The O2 sensor tests fine with full voltage sweep..🔧🔧🔧






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New 1988 745......ECU oxygen sensor voltage. [700]
posted by  Nahtanha  on Sun Jun 20 11:34 CST 2021 >


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