1999 Toyota Corolla Q&A

1999 Toyota Corolla Question: my niece has a 1.8l toyota corolla and its showing a cylinder 1 misfire(301)code

what does this mean? it has individual coils on each cylinder and i replaced the plugs. could the coil be bad? any suggestions? -
Answer 1
You need to get the firing order to pin point the issue to a certain plug, but good rule of thumb is change the wires when you change the plugs. If this doesnt work change the coil. -
Answer 2
GET DIAG AND EST AS TO WHAT IT IS,IT COULD BE MANY ISSUES -
Answer 3
Swap the coil from #1 to #3 and see if the misfire follows the coil ,if it does , then replace the bad coil. -