Causes and Fixes Chevy/GMC P0301 Code: Cylinder 1 Misfire Detected

How to fix a Chevy/GMC P0301 engine code: Cylinder 1 Misfire Detected
A P0301 code is set when the computer (ECM/PCM) reads several misfires have occurred in Cylinder-1.
A misfire is when a cylinder fuel/air mixture is not ignited.
If you have multiple misfire codes, there may be other issues, such as a bad fuel pump or MAF sensor.
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Possible Causes of a P0301 Code
Bad Spark Plug or Spark Plug Wire
Bad Coil
Bad Fuel Injector
If Equipped, Distributor Cap
How to Troubleshoot a P0301 Code:
Locate Cylinder 1
Check for Spark
Check Spark Plug Wires and Coil
Check Spark Plug
Check Fuel Injector Wiring
Test Fuel Injector
By using this information user assumes all risk of use.
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[@tinacampbell667]

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[@flipposgarage]

You missed couple things could be bad engine deactivation solenoid or AFM lifter

[@kingmadoxx602]

Great Video Bro Great Help!! Bout To Get To It

[@MrKL83]

Got a P0300 and a P0301 code. Changed spark plugs. The spark plugs wires too but they sent longer spark plug wires. What next should I do?

[@HVAC_Mechanic]

I would test all the components, injectors, coil, and wiring on cylinder #1.

[@amarie7963]

I changed plugs, coil pack, and got code P0301 and P0303. Put in new fuel injectors. It fixed 3 but there is still a misfire on 1. Any suggestions. It’s a 2018 Chevy equinox

[@HVAC_Mechanic]

If the parts are all good, I would test the wiring be sure everything is plugged in.

[@tracypatterson6244]

I got the same issue replaced spark plus ignition coil and all wires still showing a misfire?? Any help if greatly appreciated ​@@HVAC_Mechanic

[@flipposgarage]

Could be cylinder deactivation solenoid or AFM lifter y’all check the easy things first if it’s still happening then this is ur problem

[@carloshernandez-kn3ci]

get a compression test