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Thread: Strange tranny "sliping" after catback install Camaro SS 2018

  1. 10-30-2019 #1
    balla_EG6
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    Strange tranny "sliping" after catback install Camaro SS 2018

    Hello Guys,

    We have a 2018 Camaro SS that we just installed a catback. The back valves are still in place but outside exhaust pipes. Of course the car trows an error code. With VCM editor we tried many things like DoD disable, DTC disable, Stage1 tune, but on all cases at 60-80 mph with very little throttle the car seems to disengage and then engage trans, I see by cluster rpm oscilating 200rpm or so. Seems that something related to DoD .

    Attached a log... at RPM line you can see some "spikes" .

    Camaro C6 SS 6 v2 roadway error 2.hpl


    Any help much apreciated
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  2. 10-30-2019 #2
    STAGEUP
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    Have the TC parameters been modified at all?
    2009.5 PBM G8 GXP M6 W/Roof-Self tune, OBX LTs, Kooks axleback, LSA blower, cam,
    Monster LT1-SC clutch, flex fuel, 12 psi [email protected] 1,800 D.A
    2007 TBSS-Self tune, bolt ons [email protected], 1,900 D.A
    1991 GMC Syclone- Self tune/catback 12.8@104, 4,200ft D.A
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  3. 10-30-2019 #3
    balla_EG6
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    Powerhop - Disabled / Oil Starve - Disable

    But the "error" or "slip" occurs with STOCK map and STAGE1 map
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