Have code P071 & P046
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Northstar Engines and System Technical Discussion Discussion, Have code P071 & P046 in Cadillac Engine Technical Discussion; My car has been throwing codes and running rough for the passed few months. It shakes pretty bad (and sounds ...
  1. #1
    1987FieroGT is offline Cadillac Owners Member
    Join Date
    Jun 2011
    Age
    20
    Posts
    13

    Have code P071 & P046

    My car has been throwing codes and running rough for the passed few months. It shakes pretty bad (and sounds like a mis). I finally was able to pull the codes. I got two codes, P071 and P046.

    P071: Intermittent Map Sensor Signal

    P046: Front-To-Rear Bank Fueling Imbalance.

    Whats my first step of solving these issues? I pulled my map off to make sure that gasket was not broken, its not broken. Is there sometype of mutimeter test I could do on the map plug? Could the intermittent map cause my fueling imbalance?

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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
    Location
    Woodstock Ill.
    Age
    66
    Posts
    74,556

    Re: Have code P071 & P046

    Update your profile to show the year and model of your car. It would help in determining the age and we wouldn't have to ask.

    I'd probably start by replacing the MAP sensor.

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