1989 Seville code E13 Oxygen sensor not ready
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HT4100 4.1, 4.5, 4.9 Discussion, 1989 Seville code E13 Oxygen sensor not ready in Cadillac Engine Technical Discussion; Hello, I am getting the oxygen sensor not ready code on my Seville. Does anyone know what I should look ...
  1. #1
    rjg
    rjg is offline Cadillac Owners Member
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    1989 Seville code E13 Oxygen sensor not ready

    Hello,

    I am getting the oxygen sensor not ready code on my Seville. Does anyone know what I should look for? Is the O2 sensor bad or something else setting it off? The car seems to run fine. Thanks for any help!

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  3. #2
    Dave S Texas's Avatar
    Dave S Texas is offline Cadillac Owners Enthusiast
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    Besides the E13 code, is there either a E45 or E44 showing too (intermittant or history)?

  4. #3
    rjg
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    Neither the 45 or 44 is showing up. Thanks for the help.

  5. #4
    carnut is offline Cadillac Owners Master
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    It wont be ready if the engine temperature is not to normal ( 195 to 210 F) Verify that thru diagnostics. 80 to 90 degrees C is the same. Should get there is 5 min. running. Or if the sensor is unplugged!!! it would not be ready. Or, if the sensor is a 2 wire sensor, its possibly not being heated.

  6. #5
    Dave S Texas's Avatar
    Dave S Texas is offline Cadillac Owners Enthusiast
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    Check out the suggestions of Carnut. The sensor may well be faulty and in need of replacement. The manufacturer recommends they be replaced every 30,000 miles. If the O2 sensor is faulty it's costing you money at the gas-pump.

  7. #6
    rjg
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    Well I replaced the O2 sensor. It was bad. It wasn't working since it was broke off and was hanging by the wires! And I thought there was an exhaust leak coming from the rear manifold!

  8. #7
    carnut is offline Cadillac Owners Master
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    Next time, before you post, open the hood!!

  9. #8
    Dave S Texas's Avatar
    Dave S Texas is offline Cadillac Owners Enthusiast
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    Re: 1989 Seville code E13 Oxygen sensor not ready

    Quote Originally Posted by carnut View Post
    Next time, before you post, open the hood!!
    That is always good plan....

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