Spark plugs

I got code p0355 today saying coil #5 is faulty. I changed the coil and cleared the code then It came back. It could be spark plugs but my 4.0 only has 94k miles. Anyone have any suggestions.

 

It should be time for your third set of spark plugs with that mileage, but I expect that would be a different code. I’d swap the plugs since it probably needs em anyway, put the ome coil back in and see what happens

 

Check the #5 plug for spark.
Or swap it to a different cylinder. See if the code follows.

Then see here.
https://www.tacomaworld.com/threads/p0356.758563/#post-27039175

 

Change the spark plugs just out of maintenance.

Could be wiring or something else causing the problem, though that would be rare.