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  • #1

    Burnt sensor?

    I was wondering if anyone knew what this was that got burnt up on my driver's side collector. It is a little black rectangle plastic thing with a red light on it, it's near the starter with wires coming from it . When I did my plugs I left it to where it got a 1/3 of the way burnt.

    Does anybody know what this is? Is it something aftermarket?

    cc 304 Cam, BBK Headers, Magnaflow exhaust, Eagle Crank, 1.6 Rocker Arms, Zoom Racing clutch, Pulley, Computer upgrade, Hurst short throw shifter,KNN filter
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  • #2
    Originally posted by 97WS6-Bird
    I was wondering if anyone knew what this was that got burnt up on my driver's side collector. It is a little black rectangle plastic thing with a red light on it, it's near the starter with wires coming from it . When I did my plugs I left it to where it got a 1/3 of the way burnt.

    Does anybody know what this is? Is it something aftermarket?
    how about a pic? I don't know of anything stock that is down there with a light on it.

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    • #3
      Originally posted by 97WS6-Bird
      I was wondering if anyone knew what this was that got burnt up on my driver's side collector. It is a little black rectangle plastic thing with a red light on it, it's near the starter with wires coming from it . When I did my plugs I left it to where it got a 1/3 of the way burnt.

      Does anybody know what this is? Is it something aftermarket?
      Something is wrong with your description. You say driver's side collector and then starter. They are on opposite sides of the engine. There is nothing stock with a light on it.
      Rob B 95Z A4 Tech Page (Part numbers / locations, how to's, schematics, DTC's...) Home Page - shbox.com

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      • #4
        Sounds like an O2 "sim". But the location is confusing, as Rob already pointed out.
        Fred

        381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor

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        • #5
          I meant passenger side I am sorry. I 'll have to get a pic from under the car. It used to blink when the car was running but now it doesn't.

          cc 304 Cam, BBK Headers, Magnaflow exhaust, Eagle Crank, 1.6 Rocker Arms, Zoom Racing clutch, Pulley, Computer upgrade, Hurst short throw shifter,KNN filter

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          • #6
            Originally posted by Injuneer
            Sounds like an O2 "sim". .
            that's what I was going to guess.

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            • #7
              Is the O2 on there sim because I have no cats. Is it something I need. I know the exhaust is pretty rich.

              cc 304 Cam, BBK Headers, Magnaflow exhaust, Eagle Crank, 1.6 Rocker Arms, Zoom Racing clutch, Pulley, Computer upgrade, Hurst short throw shifter,KNN filter

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              • #8
                The rear O2 sensor harness is on the passenger side by the starter. It's square, as opposed to the front sensor harness which is flat.

                I agree with the others...sounds like an O2 SIM. If you have removed the cats, the rear O2's would not be necessary as their purpose is to verify the function of your cats.

                If the SIM has failed, and the ECM has not been re-flashed to ignore the rear O2 sensors, you will set a trouble code.

                The front O2s are mandatory...as they tell the ECM how to adjust the mixture.
                Al 96 Ram Air T/A
                Mods: Build # 784 * Hotchkis STB * SFCs * Borla cat back w/QTP cut-out * AS&M/RK Sports Mid-length headers w/single CAT * Koni SA shocks on lower perch w/ lowered rear * Strano Hollow front & rear antisway bars * 1LE front/rear springs * 1LE aluminum driveshaft * Strange 4.10 gears w/ Zexel Torsen diff. * ARP bearing cap studs & aluminum diff cover* J&M Hotpart poly/poly rear LCAs and poly/poly panhard bar * RAM Powergrip clutch w/ LT4 PP and RAM billet Al flywheel * C5 Z06 brakes * C6 Z06 wheels * Spohn T/A * Spohn DS Loop * fully custom interior w/ custom audio

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                • #9
                  An O2 sim would typically be installed in the electrical connector near the downstream O2 location, rear of the cat. If someone installed one in the upstream location, then he had a fueling issue and didn't know how to resolve it other than to dummy out the O2 sensor. However, I've never seen an O2 sim that blinks.

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                  • #10
                    97Bird'

                    I got it.....

                    Jack Bauer planted a "tracking device" on your bird........
                    '94 Firebird Formula, Lt1, 6 speed, all stock

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