heater on bench 1?

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Northstar Engines and System Technical Discussion Discussion, heater on bench 1? in Cadillac Engine Technical Discussion; i have changed the oxygen sensor 1 of bench1, like 3 times, and always present the same code, HEATER SENSOR ...
  1. #1
    carloslara is offline Cadillac Owners Member
    Automobile(s): deville DHS
    Join Date
    Feb 2009
    Santo Domingo, Dominican Repub

    heater on bench 1?

    i have changed the oxygen sensor 1 of bench1, like 3 times, and always present the same code, HEATER SENSOR 1 BENCH 1.i have inspect the line, and the heater power line, negative and positive, + the signal and ground, are good from the pcm. at least on the end connector to the A/F sensor.

    how i can solve this matter?

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: heater on bench 1?

    I think you mean Sensor 1 BANK 1. Are you using an A/C Delco sensor?

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