car is a 1999 1.6el

ok guys i am really frustrated with this and dont know what else to do. so i pulled the motor(d16y8 out of my 1.6el and replaced it with another d16y8 with less km's. went to start it and it cranks but it wont start. what i have tried to far:

-checked grounds(cleaned and replaced 3 grounds, tranny to frame, wiring harness to thermostat housing, power steering bracket to rad support)
- checked fuses #13, 44, 31, 47-all are good
- tested main relay-its fine
- hooked 12volts directly to fuel pump and it turned on
- pulled plugs and testing for spark- NO spark
- i also tried a different ecu a p28 with a conversion harness just to see if anything would happen and still the same so i dont think the ecu is fried
- tried a different security module - still nothing.
- fuel pump does not turn on or "whine" when key is turned to second poistion
i also noticed that i can lock and unlock the doors with the remote but when i lock it i can open the door and the alarm wont sound, alarm will only sound with the panic button

- also the blinking security light is not on at all.

also tried
ok so today i tried:
- replaced every fuse under the dash and under the hood
- new crank position sensor
- new ignition control module and coil
- added a forth ground


what i noticed is that when i turn the key to the second position is that the CEL light will NOT light up. the battery, oil ebrake and abs lights all come on. so what i am thinking is that the ecu is no getting power. i also hooked up and OBD2 code reader and it will NOT detect my car.

 

you say you converted it to obd1 via a conversion harness correct? has the car been converted or did you just do this.

reason i'm asking is because you might have used the wrong obd2 conversion harness because there is an obd2a and an obd2b which are wired different. i believe your car should be obd2b being that it's a 99.

this is my only guess because it happened to me when i first converted to obd1

 

main relay clicking? check engine light turning on and off?

 

definitly main relay my main realy was clicking and everything i still wasnt getting spark or fuel i replaced it perfect

 

Have you considered that the alarm system may be causing the problem?