This has been originally discussed at this thread :
http://www.camaro6.com/forums/showthread.php?t=487290
I ran into the same issue after my second track day. I initially thought that I had bad fuel and since I couldn't reset my ECM (apparently not easy task on these cars), I was under the impression that the ECM cannot recover itself from the bad/low octane map or pulling timing or something (as it did with previous Gen Camaros).
I've scheduled an appointment with my dealer for this Wednesday to do that. It's also a bit hard to replicate the issue on rainy, cold days since it requires a WOT and can only be done (safely) in traffic on 2nd gear.
I was scratching my head because it happened to a 17 Camaro SS owner, a brand new 1LE at the dealer showroom(!), to my 17 1LE and a 17 ZL1 owner. I would understand the SS cars but ZL1 has a completely different motor and a tune of course. Forum member "geaux_tigerss" says that the dealer replaced the camshaft solenoid and ECM but still didn't fix the issue
. It turns out that the A/C belt -under high load- was rubbing against the wiring harness right below it, and stripping two wires and causing that surging issue at around 5500 RPM. It didn't reach to a point where it displays a CEL in my experience but he had both CEL and the issue was existent all the time.
I checked mine and as expected I was dealing with the same exact issue. I took some pictures showing how it's stripped. It looks like a manufacturing defect and somehow they didn't pay attention to that clearance between the wiring harness and the A/C belt. I would be surprised if the clearance is different on other cars unless they changed the method of putting the wiring harnesses all together. I would highly advise to check yours and if you don't see any rubbing/stripped wire, consider yourself lucky and simply put a zip tie to make some space between those two (wires and A/C belt above it)
I put the below pieces aside for an easy access:
Notice the two completely stripped wires touching each other in the below picture.. right next to the purple wire:
I used some electrical tape to insulate those two wires (simply pushed some tape with a thin, flathead in between) then wrap around it with another electrical tape and zip tied it with the connector wire so that it would pust it away from the belt and give some space.
Note: Needle nose pliers helps a lot if you have big hands like me
I took it for a quick ride to test it and the hesitation is gone now. Phew! what I relieve ..
