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Hi guys. First time scanner user and I’m still learning how and what values mean. 2011 Buick 2.4 Regal. I have inspected the timing chain and it has tension no timing codes. Misfire at any engine temp around 2000rpm with and without load. I started checking sensors since the person I bought it from stated new coils and plugs “recently. Mpg 24. All cylinders misfire at this time. If I’m reading this correct O2, MAF are functioning properly. Looking up proper fuel psi but the reading I saw didn’t seem low. both Fuel trims +-4% at the peak. Using Autel mk808bt pro. No injector fails I could see. Leaning on TPS (will test soon) or vacuum leak. Any more insight would be great. Thanks in advance!
