Results 1 to 11 of 11

Engine light codes?

This is a discussion on Engine light codes? within the General Help forums, part of the LSx Technical Help Section category; Can someone explain these top me in English.I'm not a mechanic....

  1. #1
    Junior Member
    Join Date
    Mar 2015
    Location
    michigan
    Posts
    4

    Engine light codes?

    Can someone explain these top me in English.I'm not a mechanic.

  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Location
    Ugy Lower Corner of AL
    Posts
    10,509

    Navy Blue Metallic
    98 T/A w/a little mods...

    The Air pump was an attempt by GM to reduce emissions. Air is needed to finish the combustion in the cat, so it adds the needed air into the exhause manifold.
    Since no internal combustion engine is 100% efficient, there will always be some unburned fuel in the exhaust. This increases hydrocarbon emissions. To eliminate this source of emissions an air injection system was created. Combustion requires fuel, oxygen and heat. Without any one of the three, combustion cannot occur. Inside the exhaust manifold there is sufficient heat to support combustion, if we introduce some oxygen than any unburned fuel will ignite. This combustion will not produce any power, but it will reduce excessive hydrocarbon emissions. Unlike in the combustion chamber, this combustion is uncontrolled, so if the fuel content of the exhaust is excessive, explosions, that sound like popping, will occur. There are times when under normal conditions, such as deceleration, when the fuel content is excessive. Under these conditions we would want to shut off the air injection system. This is accomplished through the use of a diverter valve, which instead of shutting the air pump off, diverts the air away from the exhaust manifold. Since all of this is done after the combustion process is complete, this is one emission control that has no effect on engine performance. The only maintenance that is required is a careful inspection of the air pump drive belt. (but our camaros dont have a belt driven pump, its electric, so instead of diverting the air when its not needed, they just shut off the pump).


    Most of the time these codes are either the air pump has died, fuse is blown or the check valve is stuck. BEST COURSE of Action. Pull the fuse, remove the air pump and have a mail order tuner like Frost tune it out. Removal of the EGR system will also be best. This is usally all done with long tube headers are installed.

  3. #3
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,567

    Black & Blue
    '02 WS.6 / '07 Suburban

    Here is some good reading on the secondary air system (with lots of pics) and how to diagnose and fix it yourself: Secondary Air: Diagnosing and Removal

  4. #4
    Junior Member
    Join Date
    Mar 2015
    Location
    michigan
    Posts
    4
    Awesome thanks for the info!
    Last night I opened the fuse box to see what the fuss looked like.I never pulled it out.I got in it to go to the autoparts store and the light was off.
    It has not can back on yet.
    I never replaced s anything.

  5. #5
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,519

    98 Formula
    06 duramax

    my money is the relay is bad

  6. #6
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Location
    Ugy Lower Corner of AL
    Posts
    10,509

    Navy Blue Metallic
    98 T/A w/a little mods...

    I favor the removal and tune out as the fix....

  7. #7
    Senior Member JayTA98's Avatar
    Join Date
    Dec 2007
    Location
    Orlando, FL
    Posts
    3,351

    Mean Black
    1998 Trans Am

    if it went away it is most likely the check valve getting stuck intermittent. I had that issue many times when I had my AIR pump. You find out which one is it but it will eventually happen again. If you don't have emission testing then I will suggest the removal and mail in tune up from frost like the other members said. That's what I did.

  8. #8
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,519

    98 Formula
    06 duramax

    a check valve will typically be a 1415 or 1416 code.......

  9. #9
    Senior Member JayTA98's Avatar
    Join Date
    Dec 2007
    Location
    Orlando, FL
    Posts
    3,351

    Mean Black
    1998 Trans Am

    Quote Originally Posted by 0rion View Post
    a check valve will typically be a 1415 or 1416 code.......
    you are right, I remember the code told me the specific side. Thanks for catching that up. Ah memories of fixing my car when I had it...
    1998 TA 130k A4, LS6 intake, TunedByFrost, Airlid, AIR and EGR delete, Borla exhaust, front Eibach lowering springs, LS6 valley cover, UMI TQ arm, UMI LCA's, UMI panhard bar, Poly engine mounts, BMR relocation brackets, Blistein HD shocks and struts, Oil catch can, Autotrix window fix.

    Now I have an 2001 F150 5.4L

  10. #10
    Junior Member
    Join Date
    Mar 2015
    Location
    michigan
    Posts
    4
    Yep.come back on today.
    Changed relay and the fuse is good but it's still on

  11. #11
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,519

    98 Formula
    06 duramax

    the light won't clear until the test runs and passes unless you clear the code with a scan tool.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Check Engine light vs. Service Engine light
    By bigrig73 in forum Computer & Tuning
    Replies: 1
    Last Post: 04-20-2010, 07:11 AM
  2. Question: Check Engine Light Codes
    By smkn gts in forum Computer & Tuning
    Replies: 5
    Last Post: 04-16-2010, 06:28 PM
  3. Help: SeS light and Codes
    By Justin93 in forum General Help
    Replies: 2
    Last Post: 10-02-2008, 11:11 AM
  4. Service engine soon light = Check engine light?
    By jinxeng in forum General Help
    Replies: 5
    Last Post: 08-11-2006, 08:34 PM
  5. 3 ses codes no mil light
    By JattGunMan in forum General Help
    Replies: 2
    Last Post: 07-10-2006, 02:15 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •