no fuel pressure

[southsiderida90]

engine wont start and im pretty sure its because im not getting any fuel. i dont here the buzzing noise when i turn the key. i tried jumping 12v to the check connector under the hood and had no change. i checked relay harness and have 12v on 2 pins(key on). i then checked for 12v at fuel pump connector and i only get 12v at blue/yellow wire, which i dont think is the power source for pump. according to alldata i should have 12v at the black/white wire, and i dont. i havent tested the relay yet, but i did jumped a wire to the black/white wire and still had no affect. i have no idea where to start. fuel pump? relay? short?, and yes the tank has gas in it.

 

[southsiderida90]

dont know if this has anything to do with it, but im also not getting signal to starter and have been running a remote. i also have noticed that the lights dont turn on or flip up and the seatbelts dont retract. is there a main fuse or relay for key on. i swapped the mpi relay today with another and no changes.

 

[southsiderida90]

replaced fuel pump, i can now hear it prime when i apply voltage to check connector. im getting fuel pressure now but still no start. also i read that the pump does not prime itself with key on with 1g's, is this true. somebody please, any advice is appreciated.

 

[bigf4]

The car getting spark?

 

[southsiderida90]

yes but only 2 cyllinders. im not sure if im getting injector pulse or if the injectors are clogged. however i just orders a ecu from motorguys and ill see what happens. does this sound like an ecu issue?

edit: she tries to start when i spray starter fluid so i know its still not getting fuel. i can feel the inlet line fill up as system primes up.

 

[southsiderida90]

today checked for injector pulse, and im not getting any signal. again these are my symtoms-

-no injector pulse
-no spark 2 cyllinders
-no fuel pump signal

pulled ecu today and saw no burn marks or leaking caps? is there anything else i should check?

 

[Talon2139]

I would say cam angle sensor, but since you are getting spark on 2 cylinders, it might be a coil pack out, at least the one coil that drives 2 cylinders, because the 2 are firing. Are you getting fuel? if not sure, disconnect the fuel rail, and get a bucket then try turning it over, you can then see if any sprayed out.

 

[southsiderida90]

well i can hear the fuel running through the rail, but no start. she almost starts when i spray starter fluid. i checked for injector pulse and i am getting no signal. a cam sensor issue would make sense but i checked for fluxuation before the swap. so i still dont know if the two issues are related but my gut says that they are.

 

[southsiderida90]

k, swapped out ecu with a motorguys rebuilt, and no change. i am so stumped right now. still no injector pulse and no spark in 2 cyllinders. what should i check out next. cas or power transistor? please somebody, i'v been stuck on this for over 2 weeks.

 

[snowborder714]

Yes, trying out the transistor and CAS seem like a logical next step.

 

[southsiderida90]

Yes, trying out the transistor and CAS seem like a logical next step.

k, thanks

ey, one more question, is the fuel pump suposed to turn on at key on engine off. cause i read on another thread that it doesnt and this seems kinda strange for a f.i. car?

 

[snowborder714]

The fuel pump does not turn on until you crank the car.

 

[Ruben16V]

I could be your coil pack or your ignition module i don´t know how you call it XD

 

[southsiderida90]

k i tested the cas and it checked out fine. i dont know if the power trans. has anything to do with injectors but i know its a possible issue. i've read on alldata how to test it but it seems kinda involved. i read in my haynes book that no injector signal can be one of three things. ecu, injector resistor or break in circuit. where is the injector resistor? and how do i test it.

 

[snowborder714]

http://members.shaw.ca/dsm.1000q/Engineprimer/1G/respack.htm

 

[southsiderida90]

thanks bro! i kinda wandered what that was