Title is self explanatory, but I replaced the fuel pump since it all led to it, I pulled a couple not all plugs and they were tan, it would always crank no start the 1st crank, but 2nd crank always started right up, and now won’t start unless I push down the gas pedal a bit, if I let off, it dies. I’m thinking maybe a vaccum leak, and I’m gonna try to get a smoke machine or whatever it is to look for it. Any ideas on where to start?

 

Fuel pump was replaced a part broke off on it, when I had installed it,

The black connector of the fuel broke when I installed the new one, I also installed a ACDelco MAF sensor and it ran fine for like 2 seconds and then didn’t afterwards and still won’t

These are the plugs after I pulled them, self explanatory bottom right cyl 1 bottom left cyl 2 and then 7 and 8 also numbered

 

Replaced MAF, and the fuel tank pressure sensor, it runs much better but now I have a p0358 for coil 8, there was fluid inside the connector, I’m going to try and clean the connector and if it doesn’t work then swap a new connector in it

 

Still misfiring after replacing and fixing everything, but now it gave me a p0178, so I’m gonna try replacing it when it comes in