I thought I had multiple DPFE failures, but I now think it is the wiring or Powertrain Control Module. I just ran a test on the signal wire(the top one of the three in the photo). According to the Haynes manual, with the engine running cold, that wire should show .2 to .7 volts. When the engine reaches normal operating temperature, that voltage should move into the 4-6 range. When I ran the test, my signal wire was about .8 with the engine running cold and never got beyond 1 volt, when at operating temperature.
Is it correct to say that this is likely a bad wire or a malfunctioning Powertrain Control Module?
Is it correct to say that this is likely a bad wire or a malfunctioning Powertrain Control Module?
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