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Thread: 2013 Camaro ZL1 o2 Sensor Issue/ Oil Dilution Issue

  1. #1
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    2013 Camaro ZL1 o2 Sensor Issue/ Oil Dilution Issue

    Just recently put in a BTR Stage 3 PDS Torque v2 Cam with a new valve train I also added DSX aux pump and flex fuel kit. Spark plugs are TR7IX #3690 stock gap. The problem I'm having is constant misfires at idle
    and bad fuel dilution with terrible gas consumption. My spark plugs were fouled after the first 30 minutes of driving so I replaced those and changed the oil after the dipstick smelled like fuel I also changed my fuel injectors as well. My tuner believes its something to do with the upstream o2 sensors, i've replaced both bank1 and bank2 sensors along with the extensions I also checked the pins/wires for any signs of damage and I couldn't find anything. I know a lot of you guys on here are experts and I could really use a shove in the right direction if anyone could take a look at the attached datalog and point out anything I would be grateful, thank you!

    Flex Fuel sensor is unplugged and defaulted at (40%)
    DTC CODES
    P0118 ECT sensor 1 circuit high input
    P0098 IAT2 sensor circuit high input
    P0300 Random Misfire

    Zl1LOG.hpl

  2. #2
    Tuning Addict edcmat-l1's Avatar
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    It looks like the O2 sensors are crossed but I didn't think that was possible on those cars. Also looks like it may have real misfires. And it doesn't have any vacuum at idle. Your "tuner" should be able to tell you these things.

    Looks like you have real mechanical issues you need to diagnose before you do any tooning.

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  3. #3
    Senior Tuner Russ K's Avatar
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    Your B2 O2 mv is very low causing high fuel trims on B2. Replace that O2 sensor.

    Russ Kemp

  4. #4
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    I think like Ed that the o2's might be crossed.
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