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  • Strange circular thing near OBD port

    Near the plug to read the OBD codes, i found this round thing, about the size of a roll of film, connected to a plug and wrapped around with electrical tape. My car is currently running like ****, dead spots in acceleration, low gas mileage, misfires, etc. Is this thing supposed to be there or did the previous owner put some sort of override to prevent any CEL's from coming on?

    98 camaro, 5 speed, 90,000 mi
    Last edited by onspeed; 05-31-2008, 09:07 PM.

  • #2
    Re: Strange circular thing near OBD port

    i dont have one there, mayb take a picture?

    Abbott long tubes,homemade true duals,slp ram air,whisper lid,eibach springs,kyb shocks,BMR subframe connectors, BMR LCA reloc brackets,BMR LCAs. T-top/manual converted

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    • #3
      Re: Strange circular thing near OBD port

      Sounds like maybe a flasher??? Did one of your flashers fall from its housing and that is what you are seeing? The flashers are mounted right above the OBD port.

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      • #4
        Re: Strange circular thing near OBD port

        I'm going with Flasher on this one.... cylindrical (is that even close to spelled right?) silver thing.

        Otherwise, have you checked your plugs/plug wires on the "runs like crap" condition? Otherwise fuel filter maybe.

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        • #5
          Re: Strange circular thing near OBD port

          sounds like the flasher relay that we're telling you about is the lest of your problems.

          but yeah, sounds like a flasher to me.
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          • #6
            Re: Strange circular thing near OBD port

            yeah, i did some researching, its a flasher. As for the car, i changed the wires today, and it runs better, but accelerates worst. A little more jerky and hesitant when i step on it. So far i've changed plugs, air filter, fuel filter, wires, and PCV valve. Getting ~16 MPG driving very conservative. No CEL, i'm thinking coil pack or o2... but since they're both somewhat pricy, i don't want to go replacing them randomly. On a sidenote, why is it impossible to find a gas cap for my '98? I'm looking to buy a locking one, and autozone and advance auto doesn't carry caps for 98...

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            • #7
              Re: Strange circular thing near OBD port

              I would guess coil pack, misfires seem to indicate that. Should be able to get one for <$50. I paid $50 apiece for the MSD Blaster packs, the normal ones should run a bit less, IIRC like $30.

              I have a 98 firebird, and I've had the same problems with my coil packs and wires as they went bad. I'm at 98k, so we're pretty much in the same boat. I just solved the problem by replacing all 3 coils, but I doubt you've got more than 1 bad one if that's what it is.

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              • #8
                Re: Strange circular thing near OBD port

                have you had any luck finding a gas cap?

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                • #9
                  Re: Strange circular thing near OBD port

                  ... is the car throwing any codes? knowing those codes could help a bit.

                  And make sure you have the right firing order on your plug wires. ;)

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                  • #10
                    Re: Strange circular thing near OBD port

                    car threw a code today (finally). Cylinder 4 misfire. Looking at the engine from the front of the car, how are the cylinders numbered? I'm thinking either my wire isn't in right, or my coil pack is going bad. Which coil pack is for cylinder 4? The closest one says 6/3, middle says 2/5, and the last one doesn't have any markings...
                    Last edited by onspeed; 06-02-2008, 01:55 PM.

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                    • #11
                      Re: Strange circular thing near OBD port

                      number 4 cylinder should be the second piston back on the left side

                      edit* the one without the markings was probably replaces, and is your problem.. im betting

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                      • #12
                        Re: Strange circular thing near OBD port

                        yeah, i'm leaning towards the coil too... any certain brand i should get or just shoot for the cheapest? the AC Delcos and MSD's are like 2x the price... any benefits?

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                        • #13
                          Re: Strange circular thing near OBD port

                          Originally posted by onspeed View Post
                          yeah, i'm leaning towards the coil too... any certain brand i should get or just shoot for the cheapest? the AC Delcos and MSD's are like 2x the price... any benefits?
                          just buy a stock one

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                          • #14
                            Re: Strange circular thing near OBD port

                            I was thinking about a locking gas cap, but does anyone know if you even can siphon gas out of the fourth gens? I heard that most US cars after '86 had screens in the fill pipe to prevent siphoning.

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                            • #15
                              Re: Strange circular thing near OBD port

                              Originally posted by landj View Post
                              I was thinking about a locking gas cap, but does anyone know if you even can siphon gas out of the fourth gens? I heard that most US cars after '86 had screens in the fill pipe to prevent siphoning.
                              iv never heard of this before

                              someone stole the gas out of a friends car, and it was a 97

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