i have no clue need help bad

[ESI]

names ken i have a 95 talon esi none turbo i had to replace the motor that was in it with a new motor from a 98 eclipse that has the 420a i had to swap over all my sensors but like 2 the motor ran fine then when i went to do the head gasket 3 the timing cant be any more dead on then what it is well 2 days later i went to start it up and it ran fine for about 10 mints then it died so i went to turn it on again and now it starts up but it revs up like it should then it drops to like 200 rpms and wants to shut off when i hit the gas it kills its self if i leave it alone the motor shakes bad. ive spent the last week buying all new stuff for it and its still doing the same thing and yes i replaced the fuel pump, fuel filter, fuel rail,injectors and even made sure its getting spark so as of now im lost i need help bad thank you

 

[RUBBERtoad]

Missfire, check codes, pull plugs, check sensor dongles something likely came unplugged. If you did the timing, check oil for water vice versa. Good luck

 

[ESI]

i did all that and still nothing

 

[XiKeiyaZI]

Sounds like a pretty serious vacuum leak. You need to check all vacuum lines for any that are disconnected or cracked/damaged. Go ahead and perform a vacuum test. You can also start the car and spray Starter Fluid around the suspected hoses. If the engine revs a bit when you spray over an area, then you know you have a vacuum leak in that area. It's just tracking it down which can be a little time consuming.