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Service vehicle light?

This is a discussion on Service vehicle light? within the Firebird / WS6 forums, part of the Vehicle Specific category; I just put on an SLP lid a couple days ago, but the cars been sitting in the garage for ...

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    Member Sas's Avatar
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    Service vehicle light?

    I just put on an SLP lid a couple days ago, but the cars been sitting in the garage for the most part. I took it out last night and the service vehicle light came on. Could this be cause by the lid? I plan on checking for codes and hitting the parts shop anyways. On a side note somehow a buddy talked me into putting 87 octane in for the first time ever, and I'm wondering if that could be why.

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    Moderator 35th-ANV-SS's Avatar
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    My guess is it isn't the lid. Even if the lid was loose, it's before your MAF, so there isn't any "unnoticed" air going into the engine.

    I would guess it's the gasoline you used and I would hit your friend over the head with a baseball bat.

    Just a guess on my end.....but I wouldn't be surprised if you now have some knock from detonation and one of your knock sensors is triggering your code.

    Get the code read and post up the code number.

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    Moderator Cutlass's Avatar
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    Member 1998 T/A's Avatar
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    ive never seen the svs light and i've had day time running lights go out and all that jazz...not the gas becuase SES light would come on right??

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    Member Sas's Avatar
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    Just got back from some shops and of course the light is gone and no codes are being thrown, picked up some octane boost and gonna top the tank off with 91, in hopes of not seeing the light again.

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    Member 1998 T/A's Avatar
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    keep us posted man, very intrigued right now lol

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    Senior Member justinmc978's Avatar
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    Quote Originally Posted by Sas View Post
    On a side note somehow a buddy talked me into putting 87 octane in for the first time ever, and I'm wondering if that could be why.
    hes not a buddy. never do it again.

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    87 octane = lawnmower gas...Not performance vehical gas...
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    Member 1998 T/A's Avatar
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    i put 89 in my bird a few times i know f me right...well i never got SVS light or SES light with the 89 octane

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    Member waldo's Avatar
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    Sounds stupid but make sure your gas cap is on properly. It may take a day of driving for the light to go off. Service engine lights are usually associated the emissions system…also, you may need a new gas cap….the seals on these cars are getting dried out.

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    Moderator Cutlass's Avatar
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    The "Service vehicle light" has nothing to do with OBDII, your engine, or what gas you use.

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    Member Sas's Avatar
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    I meant 89 octane... 87 goes in the truck and go kart

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    Electrical Engineer KMdef9's Avatar
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    Quote Originally Posted by Sas View Post
    I just put on an SLP lid a couple days ago, but the cars been sitting in the garage for the most part. I took it out last night and the service vehicle light came on. Could this be cause by the lid? I plan on checking for codes and hitting the parts shop anyways. On a side note somehow a buddy talked me into putting 87 octane in for the first time ever, and I'm wondering if that could be why.
    I had the SES (not SV) and threw a P1416 (I think) when I did a lid, filter and smooth bellow. Dirty check valve on the passenger side, cleaned it, it was all good.

    Quote Originally Posted by Cutlass View Post
    The "Service vehicle light" has nothing to do with OBDII, your engine, or what gas you use.
    Not being a smart ass but, what components have to do with SV light?

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    Member Sas's Avatar
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    Quote Originally Posted by Cutlass View Post
    The "Service vehicle light" has nothing to do with OBDII, your engine, or what gas you use.
    I checked out that link, and it sounds like a light being out would cause this? I don't have any lights out that I can see, and it hasn't lit up again since last night.

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    Junior Member bobodog's Avatar
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    Quote Originally Posted by Sas View Post
    I checked out that link, and it sounds like a light being out would cause this? I don't have any lights out that I can see, and it hasn't lit up again since last night.
    interesting. i didnt know we have sv lights come on when lights r out. mine never came on and ive replaced 3 or 4 headlights in the past..

  16. #16
    Electrical Engineer KMdef9's Avatar
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    Quote Originally Posted by Sas View Post
    I checked out that link, and it sounds like a light being out would cause this? I don't have any lights out that I can see, and it hasn't lit up again since last night.
    I have had several lights go out, interior and exterior and they never set off the SV light.
    Last edited by KMdef9; 02-18-2010 at 04:00 AM. Reason: typing to fast and skipping vital words...

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    Moderator Cutlass's Avatar
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    Quote Originally Posted by KMdef9 View Post
    Not being a smart ass but, what components have to do with SV light?
    Quote Originally Posted by Sas View Post
    I checked out that link, and it sounds like a light being out would cause this? I don't have any lights out that I can see, and it hasn't lit up again since last night.
    Ok I dug a little deeper in the 2001 firebird service manual and found this info.
    Different years may have different uses for the SVS light
    Quote Originally Posted by GM Service Manual
    Service Vehicle Soon Indicator

    The IPC illuminates the service vehicle soon indicator in the message center when the following occurs:
    DTC B0670 sets in the SDM module.
    The PCM detects certain non-emissions related malfunctions. The IPC receives a class 2 message from the PCM requesting illumination.(ie electrical system, charging system)
    The IPC performs the displays test at the start of each ignition cycle.
    The IPC detects a loss of class 2 communications with any other module.

  18. #18
    Slow'er'Ass Mr. Luos's Avatar
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    My Service Vehicle Soon light comes on if the car idles for a while.

    It is the body control module....getting set off because of the motor rocking with the lope.
    Requires a TechII to pull the code.

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    Member Sas's Avatar
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    I haven't been able to get the light to come back on at all, so I have no idea..

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    Member waldo's Avatar
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    Did you check the tension setting on the harmonic balancer belt and pulley assembly?

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