Prius engine start-up and after 2 minutes shuts down.

You need to read the codes again and realize that everything you listed has nothing to do with a clogged egr or a headgasket issue. This requires you chasing down wires with a DMM to see why there is low to no power going to some of your sensors and a pump.

 

Reset the ecu and see what new codes you get.

 

Are there any current or pending codes? Any warning lights on the dash?

Forgive me if I didn't see it earlier, but what are you using to read trouble codes?

 

Naw, I don't need to read them again. I saw them and I don't care. For all of those systems to fail, they have to have something in common? And figuring out what that is, is the key.

The OP has it appears, to have done the exact, same thing the Dealer would have done, at a much lower cost granted. Except they most likely could have cleared the codes for awhile? So you roll out the door happyish, with the car stilling running like crap and the exact same codes reappear?

So then you take it back to them again. And this time since they just "replaced," all the obvious stuff? They check the "Compression." And they say "Oh you have failing HG."

Now I don't know as it is not my car. But with a Gen 3, with engine problems? The HG is always suspect? So what the Hey, DVOM away, it cost nothing save for time.

But if the OP did replace the Spark Plugs, without examining them first? They most likely threw the "real answer to the car's issue, in the trash?"

 

Your screenshot of the codes has them all under a "permanent codes" heading. Permanent codes can be left around from different things that happened some time in the past. They are not necessarily helpful for what's going on now.

Your photo of the dash shows that there are current warning lights. Therefore, there are current codes. I am not sure what is going on with your Innova scan tool; is it possible there is a different tab or selection to see the current and pending codes, not the permanent ones?

If not, I would try to get access to Techstream, or to someone with Techstream.

 

Well you did leave out "The Rest of the story."

But our 2 Gen just overheated in a "rare for our area, major traffic jam?" I did know "something was up with Battery Temps?"

The Battery was having "hot issue," when the Air temps were over 95 degrees? Temps were creeping up on the Battery Pack? So per Dr. Prius, app I was aware that something was up?

But she does not use it and the car, just threw the RTOD, on her! So no codes present when it happened? That I could see at the time?

She is stuck in town, and Hwy, 50 is jammed. So until the Hwy is clear, I won't know if the car comes home under it's own power or on a "Flat Bed?"

The Battery Fan is clean, as I had just cleaned it. But did it need to be just cleaned or replaced? I don't know?

I was "suspicious?" But short trips in high heat, only sit high temp's, just enough to make me wonder? Mid pack mostly.

At this point, I can do nothing? My better half is likely to have the car "towed off to the dealer?" As I don't have the best record for dealing with "lost causes?"

But I'll start my own thread, if the Car get's back to me? because I do not have the greatest of records, when it comes to "lost cause's?" So I have to wait to see how and if the car comes home?

 

which incident forced them to change their mind and took responsibility then?

 

I understand that, but you made a point that Toyota had taken responsibility for it and I want to know which actual incident caused Toyota to take responsibility.

 

prius has been leaking since 2004 gen2. toyota doesn't care, and unfortunately, neither does nhtsa

 

If you clear it then they are not permanent. You have to reset the ecu.