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Slurpee · 06-12-2023, 04:49 PM

Brought my ZL1 in for a transmission drain and fill. Had a couple of codes that were missed by the service department and the tech. The computer didn't bring it to their attention, and I don't have a CEL. I asked for more info.
P0300 Engine Misfire Detected 0x00 Test failed since code cleared
P0455 EVAP System Large Leak Detected 0x00 Current
P26C5 Exhaust Flow Control Valve Control Circuit 0x00 Current

Wonder if P0455 and P26C5 are related to my AWE touring cat back. I was under the impression if there was an issue with the cat back, it'd throw a CEL. Unless my CEL light is dead lol.

06-12-2023, 04:49 PM	#1
Slurpee Drives: 2020 ZL1 A10; Shadow Gray Metallic Join Date: Sep 2020 Location: Chicago Posts: 254	Evap and Misfire Codes Brought my ZL1 in for a transmission drain and fill. Had a couple of codes that were missed by the service department and the tech. The computer didn't bring it to their attention, and I don't have a CEL. I asked for more info. P0300 Engine Misfire Detected 0x00 Test failed since code cleared P0455 EVAP System Large Leak Detected 0x00 Current P26C5 Exhaust Flow Control Valve Control Circuit 0x00 Current Wonder if P0455 and P26C5 are related to my AWE touring cat back. I was under the impression if there was an issue with the cat back, it'd throw a CEL. Unless my CEL light is dead lol. __________________