Code 181

Discussion in '2.3L (N/A & Turbo) Tech' started by glowstang93, Nov 14, 2012.


  1. glowstang93

    glowstang93 Member

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    Well, its been a while, but I'm back with a problem, lol. Pulled a code 181 after the Check Engine Light popped on and off. Anyone have any quick checks or things to replace first? From what I have found so far, it shows a lean condition. Maybe changing out the fuel filter would be the easiest quickest thing to tryout first. Anyone agree?

    Thanks in advance as always.
    #1
  2. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    Your fuel filter would have to be pretty nasty for it to be the cause. More likely, you have a vacuum leak somehwere, or one or more of your pre-cat 02 sensors is going bad.
    #2
  3. glowstang93

    glowstang93 Member

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    I cleaned the maf sensor and cleared the code.
    A secondary problem I had about a month ago was my air filter was saturated with oil. I thought I had it fixed by changing the pcv valve, but today I noticed there was still some oil in the air intake tube and at the throttle body. I guess it could be residual oil left in the air intake tube just flying up as air flows through. I currently have a K&N air filter and it doesn't appear to be soaked.
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  4. KhanTyranitar

    KhanTyranitar Member

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    Theres your problem. Replace the K&N with a paper filter.
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  5. glowstang93

    glowstang93 Member

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    no codes since :)
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    tealtiger93 likes this.
  6. vristang

    vristang Advanced Member

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    You should have seen a 2 digit code?
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