P301

I have a 2001 tacoma ,code 301 on ,engine runs rough but clears after 20 min ,all mechanics are stunned ,I replaced plugs and coil pack in cylinder 1 ,only to have it run worse with the new pack so the older one was put back in ,all mechanics are grasping ,need a hand

 

Welcome and good luck with getting everything taken care of!

 

I've similar problems - thinking of replacing the fuel injector at this point. Any tutorials or videos you guys know of? TIA - Ryan

 

Instead of replacing fuel injectors, try swapping the injector from cyl 1 to cyl 4 and see if the misfire follows. That would then indicate that the injector is indeed the problem.

 

That makes sense thank you!

 

Welcome to TW!