On start up, engine shakes, check hybird system and then stalls.

Hey, I hope yall who are reading are having a good week.

Okay so this is alittle of a long story. But to get all the information I feel it's necessary.

I got my Cat stolen and being in california, I wasn't able to afford a brand new one. So I was able to get someone to put on an out of state cat and weld it on.

Since then I started to hear a rattling and start to get louder over time. Especially in the heat. I didn't have time to work on it for alittle. Fast forward this summer my check hybird system would turn on and i would only be able to run on gas. For alittle. Which I ended up getting a refurbish hybird battery viva hybird 2 go. They ended up telling me I had a misfire and I should switch my spark plugs before I drove the car. So I did I thought that would solve the issue. And it did for a second I thought it did. But the rattling from earlier was getting louder more often.

Which I diagnosed as the egr cooler and valve being clogged. So thanks to Mendel Leisk I got the confidence to clean it myself. And after a weekend where I power washed the carbon build up out I put all the pieces back together. When I ran it now. The car shakes on start up, check hybird system turns on, and the engine stalls. I thought it just was sitting for a second so I need to start it up a couple of times. And my girlfriends dad said try to rev the engine so I did on the start up just alittle. Something popped and it smoked alittle.

I tried starting it up since then after a couple of weeks and it still stalls. I even tried cutting the egr valve from the intake to stop it from shaking on start up but I have no idea what to do from now.

I had engine codes such as

P0607
P0138
P3190
P0037

And after this most recent time trying to start the car

It has only giving me the p3190 code

I feel it isn't the head gasket because my coolest didn't go down. But I could be wrong

Let me know what yall think I should do. In terms of trouble shooting. Or if I should just bite the bullet and take it into a shop

I am on the verge of giving up and grabbing a toyota hilux.

Ps I have video of the start up. If someone can let me know how too add it in.

I appreciate yall reading.