CEL after installing my exhust system
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This is a discussion on CEL after installing my exhust system within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Can anyone help? I just installed a turboxcess down pipe, cat, midpipe and currently using my stock exhust. I also ...

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    Registered User subydude931's Avatar
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    CEL after installing my exhust system

    Can anyone help? I just installed a turboxcess down pipe, cat, midpipe and currently using my stock exhust. I also have an injen cold air intake. I drove 3 days out of the week since the installation (last weekend). My check engine light came on, and the car felt slightly sluggish. I figure it was the exhust mod I did, conflicting with 02 sensors. Can anyone help to confirm or deny my hunch, and or just tell me I am all jacked up! Thanks!

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    Master Baiter EJ257's Avatar
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    Get the CEL code pulled (go to Autozone or something), and then we can help you.
    2005 WRX STi (Mods | Virtual Dyno)

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    Registered User subydude931's Avatar
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    Thanks for the tip and I will get back to you on the results.

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by subydude931
    Thanks for the tip and I will get back to you on the results.
    More than likely, it's a rear 02 sensor code (which would be caused by the aftermarket exhaust) - if so, this will continue to happen until you block the code from being thrown (which can be done with an AP/tactrix)
    2005 WRX STi (Mods | Virtual Dyno)

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    Registered User subydude931's Avatar
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    Hey thanks for the suggestion. I have a hunch that it's the sensor. I'll confirm it when I get it checked in a day or two. I'll let you know. What is an AP/tactrix?

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by subydude931
    What is an AP/tactrix?
    AP = AccessPort - this is Cobb's EM solution
    Tactrix allows you to connect a laptop to your car, which would also allow you to flash your ECU
    2005 WRX STi (Mods | Virtual Dyno)

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    Would Never, Ever Say Something Bad About an Admin's Mom SonicWagon's Avatar
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    you need to remove the cat in your uppipe also before you use Acessport or tactrix
    "It is at our most challenging times that we must cheat our very hardest" - Eric Theodore Cartman
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    so whose up for been banned?
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    ou need to remove the cat in your uppipe also before you use Acessport or tactrix
    What???

    No you don't. You can tune your car with an AP or via OpenECU w/ tactrix cable with a catted uppipe just fine.

    I did that (latter) for the 1st year of ownership of my car. Stock uppipe and dp at that time.
    Last edited by White GDA; 02-24-2008 at 05:23 AM.

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    Would Never, Ever Say Something Bad About an Admin's Mom SonicWagon's Avatar
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    Quote Originally Posted by White GDA View Post
    What???

    No you don't. You can tune your car with an AP or via OpenECU w/ tactrix cable with a catted uppipe just fine.

    I did that (latter) for the 1st year of ownership of my car. Stock uppipe and dp at that time.
    well he can not run a stage1 map but with a catless downpipe i though he might try and run stage2 map
    Last edited by SonicWagon; 02-24-2008 at 07:42 PM.
    "It is at our most challenging times that we must cheat our very hardest" - Eric Theodore Cartman
    Quote Originally Posted by Weasel 555 View Post
    so whose up for been banned?
    Quote Originally Posted by RayfieldsWRX View Post
    I is teh b1ggest douche evarrrr!~

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    Registered User subydude931's Avatar
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    Didn't realize the AP was the COBB Access Port. I figured my CEL was caused by the Stock downpipe I removed with the Xcess downpipe I installed. I'll let you guys know what happens. Thanks for the help!

  12. #11
    Registered User subydude931's Avatar
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    Tried an old honda tuner trick, disconnected the battery and reconnected it. CEL is off. Does it come back on? I'll post it, when it does.

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