1992 mx3 1.8l v6 wont start

[tylercharous]

i bought this car a fewdays ago and it ran fine, then it started to make a jumping motion when it was in 1st and 2nd until 4krpm. the problem was a loose sensor by the crankshaft.

now the fuel pump stopped working(works if connected straight to the battery) so the main wire got messed up somehow.

also the engine turns over but wont start even with the fuel pump connected to the battery.

when starter fluid is sprayed in the intake, it sputters and then nothing even with fuel pumping.
im thinking bad main relay or the fuel injector relay/fuse box

any ideas let me know.

thanks