2014 Prius 105k miles do I need to clean the egr system and the intake manifold?

Little confused if it’s something that needs to be done. I’ve been having trouble finding a dealership or an indie shop that can clean it if it needs to be cleaned out. One indie shop wanted 1050 to do but they did it in a package and wanted change my spark plugs to which I’ve already changed myself.

Dealership claims it doesn’t need to be done and I spoke to an indie shop with a tech thats been working on Toyota and Lexus for 30 years and he said it doesn’t need to be done and wouldn’t effect gas mileage. He recommended cleaning the throttle body making sure my tire pressure is good and to put premium gas in since it’ll cause less carbon build up.

I have no issue spending the money to get it cleaned just for the amount it cost I would like to know if it’s something that needs to be done and if someone has a shop in Southern California area riverside, San Bernardino or Orange County area to recommend that will do a good job cleaning it that will be great. I had a 2011 that I paid to get cleaned and the head gasket went. The shop I took it to repair the head gasket showed me the intake manifold and egr and said it doesn’t even look like they attempted to clean it and if they did they should’ve let you know it was to clogged to be cleaned.

trying not to make the same mistakes.

 

Don’t feel comfortable. I’ve seen a couple videos on it and seems a little bit out of skill set.

 

Thanks I saw them online their website confused me couldn’t tell if it was a repair shop or parts place.

 

Awesome thanks I'll look into that first and I can def do the manifold that seems more within my capabilities. If I remove the throttle body and the manifold isn't dirty do I still need to remove it?

 

Thanks. Planning on doing it this week. I was going to take to a dealer to get the EGR flow test done but decided against it. I'm thinking its better to take a look with my own eyes instead of trusting the dealer. Plus I need to the spark plugs anyways

 

I wasn't planning on using my own scan tool. From my understanding I had to use Toyotas. Can I trust the dealership do the flow-test right? I'm concern with spending the $150 to have the dealership do the flow test and have them come back to telling me its normal and then I have issues down the line from not cleaning out the egr system.