91 hardbody RB20DET wiring help please!!!!!!!!!!

[91HardbodyRB20DET]

What i have done so far is the oil pressure sensor and both trans sensors switched out with ka lower wiring sensors and was able to get the whole ka lower harness put on but idk what wires to splice into for my original chassis harness and the RB engine ECU harnesss

Need help please!!!!!!!!!!!

[91HardbodyRB20DET]

Today i was able to get the motor wired up i think right. I checked voltage on everything and am gettin 12 volts. even to the ecu, fuse box, and relays.

I was even able to get the motor to crank but im having trouble trying to get voltage to the fuel pump.

if any has any ideas and can help. id appreciate it.

[Yellow4g63]

Rewire the fuel pump with a direct 12v from the battery. use the old power wire to trigger the relay to turn it on. google dsm fule pump rewire if ur not sure how to do it.

[91HardbodyRB20DET]

so run a wire directly to the battery then to the relay.how do you use the relay or wire it to trigger it?

[91HardbodyRB20DET]

Im new to the rb so wiring isnt my best at doin.

[91HardbodyRB20DET]

This is how she sits now

[Yellow4g63]

so run a wire directly to the battery then to the relay.how do you use the relay or wire it to trigger it?

http://www.raktron.com/fuel/rewire1.html look that over and you will get the idea. The factory power wire is going to be the trigger for the relay.

[91HardbodyRB20DET]

ok thank you for the help im gonna try that and post back later to say it worked or not.

i found out earlier today that my fuel pump was bad. good thing for liftime warrenties lol. gonna install it and wire it up. lets hope it will turn over.

[Yellow4g63]

I hope you have at least a 255lph fuel pump in it.

[91HardbodyRB20DET]

ok today i tester the motor, it cranks but wont start. anyone have any ideas.

i checked and have power to the fuel pump, injectors and am getting a spark from the plugs and still wont turn over.

any help would be appreciated thank.

[Yellow4g63]

Did you try and reverse the fuel lines? if they are on backwards it won't spray.

[91HardbodyRB20DET]

im 90% sure but i'll ask you which is which? its hooked up to the front of the fuel fail heading towards he firewall and the return is heading opposite goin from firewall to front of engine.

[91HardbodyRB20DET]

Ok a new day new dollar lol. serious time. I had a friend come over and found out i actually had the gas lines wrong lol. I felt like the biggest newb ever lol. it didnt start at first but then i took off the intercooler and it started for a few seconds. does not have mafs or o2 sensor hocked up.

does anyone have any ideas why it wont run till i turn the key off or could it be that since it dont have that stuff be why?

[Yellow4g63]

Prob a vacuum leak at the IACV or some place on the manifold. It should idle without the maf plugged in on the stock computer.

[91HardbodyRB20DET]

O ok i think i have found all the vaccum hoses but i will look again i hope it will without it.

[91HardbodyRB20DET]

Ok been looking for a mafs. anyone know one that is plug and play?