300zx wont start. PLEASE HELP!

[ONEbadZ32]

I have a 95 300zx with a jdm engine on it and it ran fine for two or three months until i decided to replace the oil pump and oil pan due to low oil pressure. Well i finished the job and turned it on, cranked right up with no lifter tick and good oil pressuer, but then i turned it off and it wont turn back on. That was yesterday, well today, i cranked and cranked and cranked until it turned on, finally, it did but after leaving it like 5 mins on idle, it shut off and then it wont start again. I even messed up the starter :/. any thoughts?

[costa_rican13]

so it doesnt even crank?

[ONEbadZ32]

yes it does crank and everything. it just wont start.

[ONEbadZ32]

I believe i forgot to ground the wire on the bell housing of the transmission. could that be it?

[costa_rican13]

i'm not sure about electrical stuff, but grounds could cause that or something to not function properly. are you getting spark? i say this because my ignition control went out on me one time. and there were no signs or anything, just didn't start when i needed it to. so check spark and fuel. then go from there.

[ONEbadZ32]

It has fuel and it does crank but wont turn on. nd it sparks as well

[nissanfreak12]

How is the timing? Are you able to pull codes?

[marty1mc]

1). Check for codes.
2). Check fuel pressure
3). Check compression
4). Check timing (valve and spark)