Vandy2596

I've noticed my 2014 Silverado start to shake a bit more at idle recently. A slight jump in RPMs while sitting in drive at stop lights, no loss of power or anything like that. More recently it started throwing the P0302 code and every now and then the stability/traction light flashes on then off and my truck will shift down hard. I was at 115k with stock plugs so I changed all the plugs and wires, and the number 2 coil, along with the number 2 cylinders injector. All back together now it runs almost the same and the P0302 code will still appear, then clear, then back again. Could this be a faulty reading or is there something else I could be missing?

I am having similar issues with my 2014 Silverado. 115k on it, changed the plugs and wires at 110K. RPMs jump every now and then at idle and it will idle rougher than usual and throw the check engine light on and the traction control light on. It will shift up and down hard through the gears at low speeds. Code says cylinder 2 misfire, I've replaced the coil and experienced no change in idle. The lights usually go away on their own and everything goes back to a normal slightly jumpy idle. I haven't experienced any loss of power while accelerating or driving at highways speeds, just the rough idle. Hoping its not an injector issue, running sea foam at the moment. Interested to see what the dealership says the issue might be. I'd like to avoid bringing it in myself if i can