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ChibiBlackSheep · 08-27-2020, 09:47 AM

P0300 is random misfire.

I would just go slow and check all of your connections/vacuum lines again. Pull the plug on 4 and 5 and compare them, see if they look similar even though on other sides of the engine.

08-27-2020, 09:47 AM	#2
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,117	P0300 is random misfire. I would just go slow and check all of your connections/vacuum lines again. Pull the plug on 4 and 5 and compare them, see if they look similar even though on other sides of the engine. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS