So i've tried it all, yet no start :(

[phillabaum03]

So long story short, my car died on me and wouldnt start back up so I had it towed. Here's what I've tried to get it to run...
Fuel pump, mpi relay, tested cps for voltage and there was, its getting spark so the wires and coil pack must be ok, tried the sensor by the fuel rail, cant remember what its called, checked to see if the crank sensor was getting voltage and it was, Only thing I can think left to do is try out somebodys ecu, and check the timing. opened up the ecu and the caps weren't leaking, everything inside looked ok. Oh, and I know the tps is working. Anybody got any ideas? Its a 95 GST. The car will crank, but wont start. I think it might not be holding fuel pressure? If i let the car sit for 5 mins or so then try it, it really sounds like it wants to the first cough, then same old same old. ANY help would be awesome!
thanks
oh and the injectors are getting power. Could my stock FPR be clogged so bad it wont start? Thats a lil extent

 

[TheBoosted96GST]

what happened when the car turned off and wouldn't start? are you getting fuel to the injectors? perhaps a fuel pump? sounds like you checked quite a bit, check the power transistor (ignitor) right next to timming belt on the intake manifold. Getting spark to the plugs? is the car close to stock or do you have a lot of wiring done? sometimes the easiest things with these cars tend to be the thing that causes the biggest headache, let me know i'll see if I can shoot you in the right direction.

 

[92awddsm]

Look under the car and make sure the fuel line(rubber, at tank) didnt get twisted and kinked during the fuel pump install. I saw that happen once on a 2g gsx. It left Richmond, went to Fredericksburg, Va and drove around for a few days before the fuel line collapsed completely and put the car out of commission for a few more days.

 

[1992awdlaser]

Did you do a compresionn test?

Turn the ignition to the on position but don't crank. After about ten seconds turn it off. After 3-5 seconds turn the key back on. Do that 3-5 times. Then on the last time instead of turning the key off try to start it. If it starts for a second you have a fuel pressure drop problem.

Check spark at the plugs. Almost everybody checks spark at the wires and assumes it is going through the plug. I have seen plenty of times when the wires will have spark at the end of them but the plugs won't.

Report back.

 

[turboglenn]

Are you getting fuel to the plugs? Can you hear the injectors prime when you first turn the key on? Might help to have a friend turn the key whille you listen. ALso, can you hear the pump run at all?

 

[BoredOutaMyMind]

Hey man i still got that other ECU if it will work, dunno if gsx/gst ecu's are interchangable.


EDIT: Wrong person, your avatar looks very close to someone else's i know and i didnt pay close enough attention before posting

 

[GORBS88]

You say you have power to the injectors? Are you saying that they are pulsing or are you just checking for power there? There SHOULD be power there all the time with the key on but that doesnt mean that they are opening. The ecu must ground the injector for it to fire, check it with a noid light and let us know if the ecu is actually firing them.

 

[phillabaum03]

Look under the car and make sure the fuel line(rubber, at tank) didnt get twisted and kinked during the fuel pump install. I saw that happen once on a 2g gsx. It left Richmond, went to Fredericksburg, Va and drove around for a few days before the fuel line collapsed completely and put the car out of commission for a few more days.

good idea bro, i know how much you gotta turn them things to get on and off it cant be good but i figured out to keep it outta the tank, then tighten it, then drop it down. or else you gotta twist that line to the max its scary. I'mma look at it today at school, ill let you guys know. Drove it from NC to PA which was 8 hours no prob, then the next day it just died

 

[phillabaum03]

Did you do a compresionn test?

Turn the ignition to the on position but don't crank. After about ten seconds turn it off. After 3-5 seconds turn the key back on. Do that 3-5 times. Then on the last time instead of turning the key off try to start it. If it starts for a second you have a fuel pressure drop problem.

Check spark at the plugs. Almost everybody checks spark at the wires and assumes it is going through the plug. I have seen plenty of times when the wires will have spark at the end of them but the plugs won't.

Report back.

I will try a compression test today, but yeah, when I check for spark it was with the spark plug in the end of the wire. thanks. Ill let you guys know today! not good when i only had the car for 4 days then it did this

 

[phillabaum03]

You say you have power to the injectors? Are you saying that they are pulsing or are you just checking for power there? There SHOULD be power there all the time with the key on but that doesnt mean that they are opening. The ecu must ground the injector for it to fire, check it with a noid light and let us know if the ecu is actually firing them.

I checked with a dvom and they did have power to them. which your right, doesnt mean they work. I'll check with a noid light today. Thanks guys!

 

[crimsondragon]

Did you make sure you have fuel in your fuel tank?

 

[phillabaum03]

Did you make sure you have fuel in your fuel tank?

you kidding me dude? I only removed the fuel pump 4 times now, and yes its got 3/4 tank

 

[crimsondragon]

You be surprised. Some people, not on this board, have asked a similar question and it turned out they ran out of fuel.

 

[phillabaum03]

haha i guess your right bro

 

[pyr0frk]

well if everything else is good, then i would check to see if the crankshaft position sensor is working or the camshaft position sensor is working. cause the car will crank but wont start without those two.

 

[numlock666]

You could try some starting fluid in the mani to check to see if fuel is and issue or if spark is and issue. If it starts up with starting fluid, then your not getting fuel, if it doesn't theres and ignition problem. (incorrect spark timing or no spark) Also, seen it happen here at work, snapped intake cam. So none of the intake valves were opening.

 

[phillabaum03]

ok so here's the outcome. Another brand new fuel pump later nothing. But i happened to get a pin hole in my fuel hose so I had to make one up. Found out that only cylinder 1 and 2 are getting fuel, 3 and 4 are not. i know its not the mpi, i've tried two. It comes down to #3 and 4 injectors took a shit at the same time which seems HIGHLY unlikely or a electrical problem. I REALLY hope its the injectors over the wiring problem...any opinions?

 

[phunny]

3 words, cam position sensor. same thing happened to me, took the shop 3 months to fix it.

 

[white_dsm]

When you turn the car to the ON position does the boost gauge rise to zero and cel light come on? If not the ecu is dead.

 

[phillabaum03]

3 words, cam position sensor. same thing happened to me, took the shop 3 months to fix it.

so your saying that the CPS wont give the other 2 cylinders fuel? Its a fuel problem, I did find that out

 

[phillabaum03]

so...no?