How to check coil packs on 2.7 Tacoma?

Hello everyone,

Is there anyone out there that knows how to test a coil pack on the 2TR-FE? I went into a shop this past week and there were two stored codes on the computer: P0353 and P0354.

I wrote a past thread about an exhaust backfiring sound. I think this may be the culprit.

https://www.tacomaworld.com/threads/exhaust-gurgling-sound.373674/page-2#post-10401149

 

Clear the codes and switch the suspected bad paks with the other two. If the codes come back up with the other two cylinders the paks are bad, if the same codes come back you have a different problem