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Generally, if you see low voltage readings on all the 5 volt supply voltage (Orange) sensor wires (like you are seeing) it means the PCM is bad. On the other hand, if you see voltages above the 5 volt +/- .5 volt spec it means the clockspring is bad.
UPDATE: After fiddling around with fuses and the pcm, sensors read good except the upstream o2 sensor. All grounds and power are good except upstream o2 sensor, it should read 12v but it only reads 4. Also, idle is low at 700 rpm and oil pressure is low at 15psi. After cat arrives I will attach it and replace all o2 sensors. Code po443 is also showing upOriginally Posted by CCKen
Hope you are using the 20 VDC scale on your digital voltmeter, and have the ignition switch to the ON/run position.Generally, if you see low voltage readings on all the 5 volt supply voltage (Orange) sensor wires (like you are seeing) it means the PCM is bad. On the other hand, if you see voltages above the 5 volt +/- .5 volt spec it means the clockspring is bad.
