its a misfire on cylinder number 1, check your spark plug, plug wire and/or coil on cylinder number 1
po301 means cylinder 1 misfire
Cylinder #1 misfire.
Cylinder 1 Misfire Detected
cyinder 1 misfire detected, check wire to #1 check#1 coil for adequit spark,then check spark plug!! might be as simple as a bad sparkplug!! PO301
Cylinder #1 misfire.
An engine cylinder misfire has been detected in cylinder # 1
Misfire! Replace the spark plugs, and plug wires. Do them one at a time as to not get confused.
P0300 is for random engine misfire p0301 and p0305 are misfires on cylinders # 1 and #5 www.lextechautomotivellc.com
It means that more than one cylinder has a misfire history. PO301 would be cylinder number 1 misfire. PO302 would be number 3 cylinder misfire.
PO301- Cylinder One misfire could be a bad plug or wire if not that, then coil or ignition module
PO301 means you have a cylinder misfire in the # 1 cylinder. Can be defective spark plug or plug wire. Can also be a defective fuel injector on that cylinder.
Try a different shop if can't solve it. If you have less than 36,000 miles, take it back to the dealer for warranty repair. PO301 is a misfire in the first cylinder. Were the codes properly cleared when the work was done? He could have eliminated the injector by swapping it with another cylinder. Say he moves the injector to cylinder 2, The ecm should show po302 if it is bad. Therefore, you can move a wire (both ends) to a different cylinder or the plug. A misfire could also come from coolant entering the cylinder. How did that plug look on #1 cylinder?