Carlos,

It's simple,

Fuel, air, compression, spark.

Narrow down which of those you have, or have not, before you start replacing parts randomly.


'89 Raider V6, AT, SAS'ed, Dana 44 front & rear, 5:38 gears, NP 231 T-case.
'97 Montero SR, cold weather package, 4.90 R&P, BATTLEZ suspension w/ 2" lift, JAOS grill guard & under body protection, custom rock sliders.