I have to give it gas to crank my car, fuel pump?
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This is a discussion on I have to give it gas to crank my car, fuel pump? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I have a 03 WRX with these mods -Invidia Downpipe Catted Divorced Wastegate -Invidia Racing Series Cat Back Exhaust Titanium ...

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    I have to give it gas to crank my car, fuel pump?

    I have a 03 WRX with these mods
    -Invidia Downpipe Catted Divorced Wastegate
    -Invidia Racing Series Cat Back Exhaust Titanium Tip
    -No Tune........SMH

    The problem is that I have a CEL code for
    -cylinder 2 misfire
    -front O2 Sensor

    My car wont crank unless i pump the gas pedal i need to know the problem.
    I am also having some boost spikes when press the gas? Fix?
    Could it be a failing fuel pump?
    And I need to pass inspection what do I need to do to get the front 02 code fixed?

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  3. #2
    Registered User cogito's Avatar
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    Check your injector/coil pack/and plug on cylinder two first, replace if necessary.
    2013 WRX Dark Grey Hatch
    1974 Datsun 260z Stroker

  4. #3
    Moderator Donkey's Avatar
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    Quote Originally Posted by lxlouden View Post
    And I need to pass inspection what do I need to do to get the front 02 code fixed?
    The obvious answer is replace the sensor.
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S




  5. #4
    Registered User cogito's Avatar
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    o.k. but typically a O2 sensor will not cause a misfire....
    2013 WRX Dark Grey Hatch
    1974 Datsun 260z Stroker

  6. #5
    Moderator Donkey's Avatar
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    Quote Originally Posted by lxlouden View Post
    And I need to pass inspection what do I need to do to get the front 02 code fixed?
    Quote Originally Posted by cogito View Post
    o.k. but typically a O2 sensor will not cause a misfire....
    I was replying to the OP question on fixing passing inspection,but yes actually a fialing/bad front O2 sensor can cause a misfire. It controls the closed loop fueling.
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S




  7. #6
    Registered User cogito's Avatar
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    Quote Originally Posted by Donkey View Post
    I was replying to the OP question on fixing passing inspection,but yes actually a fialing/bad front O2 sensor can cause a misfire. It controls the closed loop fueling.
    I will have to defer to you on Subies still learning the breed, But in my experience with other makes, the misfire causes the O2 sensor to go erratic, polar opposite.
    2013 WRX Dark Grey Hatch
    1974 Datsun 260z Stroker

  8. #7
    Moderator Donkey's Avatar
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    Quote Originally Posted by cogito View Post
    But in my experience with other makes, the misfire causes the O2 sensor to go erratic, polar opposite.
    Both can happen. But obviously if you already know the O2 sensor is bad then just replace it. It's not like you can't test the sensor for proper operation as well.

    OP- Read this......
    IF YOU HAVE A MISFIRE CODE ,PLEASE READ THIS!!!
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S




  9. #8
    Registered User cogito's Avatar
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    Guess the OP will have to fill us in on final resolution.
    2013 WRX Dark Grey Hatch
    1974 Datsun 260z Stroker

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