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Blinking "Service Engine Soon Light"??

This is a discussion on Blinking "Service Engine Soon Light"?? within the Firebird / WS6 forums, part of the Vehicle Specific category; Hello everyone, a while back I posted the code that was making my light come on. Passanger side cat failure. ...

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    Junior Member Tampa T/A's Avatar
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    Blinking "Service Engine Soon Light"??

    Hello everyone, a while back I posted the code that was making my light come on. Passanger side cat failure. Since im getting ready to pull them soon, I did not get it fixed. But since then..... every so often the service engine light blinks sometimes fast, sometimes slow. As if it were saying " hey ASSH@LE!! Look at me!!" So I am going home here soon & will check to see if there are any more new codes. I do have a oil pan gasket leak to fix very soon but I dont think that would make the light blink like that. Is this normal or has anybody else seen this before?

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    Veteran 0rion's Avatar
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    blinking light can be misfires. Is the car missing at all? I would get it scanned again and see what codes show up.

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    Junior Member Tampa T/A's Avatar
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    No.... runs great!! I have a Hypertech tuner so I can check codes myself. I will follow up with you though.

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    Just me Y2KPewterSS's Avatar
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    Pewter metallic
    2000 Camaro SS

    The flashing SES light means misfires, according to the owners manual. The only time I ever had a flashing SES light was due to misfire. Even though you may not be noticing anything, if you got a flashing light, I would be real careful about driving it until you get it resolved.

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    Slow'er'Ass Mr. Luos's Avatar
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    Flashing is multiple random misfires. It is also an indicator to not drive it. More serious issue when flashing.

    Pull codes. Probably has to do with that cat/O2 issue.

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    Junior Member Tampa T/A's Avatar
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    OK guys, sorry it took so long to get back with you all. Had to dig out the tuner from storage so I could check for newe codes. So here they are: P0171 Sys too lean Bank 1,
    P0174 Sys too lean Bank 2, P0300 Random/Multiple Cylinder Misfire Detected, P0430 Catalyst Sys Efficiency below Threshold Bank 2.
    So I have been driving it a little bit due to not wanting to ride the GSXR in 30 degree weather. My idle has been fluxuating a little bit. Sometimes dropping to 500rpm. I have things set up for Feb. 7th to change my oil pan gasket, install long tube headers & ORY,new plugs & wires. Then it looks like I will be visiting our sponser TampaTuning for a tune. Can someone help me translate these codes & will this work I have done to the car fix my problems? I also have a crack/hole in the vacume line coming off the passanger side of my throttle body. Dealer wants to sell me the whole line for over a 100 dollars. Is there a cheaper way to fix this? Why would the car be misfireing? The SES light only blinked during aggressive driving. Really need some advice here & the car is now parked till Feb. 7th. Thanks

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    Moderator Cutlass's Avatar
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    Your cracked PCV hose could be most of your problems there. Here's a cheaper fix idea from one of our stickys in the Gen Help forum.
    PCV Valve Recommendation / Housing Modification

    Another alternative is to convert to a LS6 style PCV system with a catch can and new valley cover.

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    Junior Member Tampa T/A's Avatar
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    Thanks Cutlass, I knew there was a sticky somewere.

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    Member 1998 T/A's Avatar
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    Solution?

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    Junior Member Tampa T/A's Avatar
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    Well, I did the PCV valve housing modification. It all fits together really well & has cleared three of my DTC codes. So it no longer misfires & is no longer running lean. Great write up on that modification. Spent less than 20 bucks. I will post a pic this weekend.

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    I would also suggest changing your plugs because they may have been damaged by the misfiring...happened to my GTP after a leaning condition caused misfiring...here is the result:



    The tips are gone from four and the arc is gone from two.

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    What about a solid "Service Engine Soon" light in a 95 TA?

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    Quote Originally Posted by Green95TA View Post
    What about a solid "Service Engine Soon" light in a 95 TA?
    Means go to Auto Zone and get your car scanned for codes.

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    Veteran 0rion's Avatar
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    Quote Originally Posted by Green95TA View Post
    What about a solid "Service Engine Soon" light in a 95 TA?
    is your car obd1 or obd2? OBD1 will be a 12 pin connector. If it is you can jump the A-B pins with a paper clip and count the flashes to get the code. If it's OBD2 you'll have to use a reader.

    OBD1 pinout

    jump the A-B pin and there will be a series of flashes (first number) pause series of flashes(second number).

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