fuel issues...help?

[DRFT240sx06]

alright so before I wasn't getting fuel to the engine, it was getting to the fuel rail but not through the injectors... So my fuel pump was working, so I checked all my wiring everything looked good tried a second ecu, still nothing though... The only thing I could think of was either bad injectors or injector plugs, so tonight I just put in new plugs and injectors, and it sounded like it wanted to start up but before it did fuel started pouring from top of the injectors, so did they give me the wrong injectors or orings on the injectors or what?

Sorry for the long post

[CotBU]

Most likely no, it's an installer error. Did you lube the o-rings before installing? did you check for leaks before trying to start the car?you removed you old injectors correct... did the new o-rings fit snug on the injectors or were they loose?were the injectors seated correctly, they usually snap into place.

Quote »alright so before I wasn't getting fuel to the engine, it was getting to the fuel rail but not through the injectors... So my fuel pump was working, so I checked all my wiring everything looked good tried a second ecu, still nothing though... The only thing I could think of was either bad injectors or injector plugs, so tonight I just put in new plugs and injectors,[/quote] You need to verify that the injectors are work, whether it be a wiring test or firing test (noidlight) if its a wiring problem not ecu problem where in the wiring is the problem... do the injectors work now? If not then when you fix the leak it's still not going to start.

Anyway are they sidefeed injectors or what? becuase they will be surrounde by fuel in the rail, so if fuel is pouring out the to of all the injectors and the injectors are working it will still fire, assuming air compression and spark.

that's why after you install the injectors you disconnect the injector harness, cas, ignitor or whatever else that would cause a fire inside the engine or outside the engine.

edited for content. -TA

[Hijacker]

Check your fuel pressure. Fuel shouldn't leak out of the injector spots of the rails unless the rail is stopped up. Even if the injectors don't spray, the FPR would let fuel just flow through the rail and not seep out like what you described.

Also, and this is just to make sure. Double check your vac line to the FPR and make sure you have the fuel lines hooked up properly.

[DRFT240sx06]

like I thought, the orings for some reason were diferent, replaced them, and guess what! Fired right up! But it ran stupid rough and died after bout 5 seconds... Tried it again and it won't start now, timing issue or what?

[DRFT240sx06]

bump- anyone have an idea? I want to get this thing fired up

[CotBU]

If you stop posting things like this, Quote »like I thought, the orings for some reason were diferent, replaced them, and guess what! Fired right up! But it ran stupid rough and died after bout 5 seconds... Tried it again and it won't start now, timing issue or what?[/quote] I will walk you through the whole thing... but you must take repsonsibility for your actions.

why do you think it's timing related? do you have an fsm? did the sr ever run in your possession?

[DRFT240sx06]

the orings on top of the injectors were the wrong size so thats why they were leaking before, I should have checked them before installation, but yes this is a fresh swap, has not run in my possesion, and I'm still new to sr's, as far as I can tell all wiring seems to be correct, new cas, fuel pump seems to be working, the only thing I can think of is timing, and I have it set up like the Faq on heavythrottle, so I'm not sure whats up

[DRFT240sx06]

so over the weekend I tried some stuff but still not firing up... I thought myfuel pump was priming but it was only humming for a second with the key on, I switched ecus and it hums for a few seconds now, not sure if that had anything to do with my problem or not... And its weird I took the line off the fpr and cranked the engine but no fuel came out, but I'm getting fuel to the rail I kno that much, so can someone please help me out, I'm stuck on this

[CotBU]

Ok man first let's make sure your fuelpump is hooked up properly. pump to rail.... fuel flows from pump too the fuel filter to rail through jectors through the fpr back to tank. get that right first. when sure about that check fuel pressure, if you don't have a gauge disconnect the line from fuel filter and rail on the rail side... place the hose in a 2liter soda bottle turn key to ON POSITION, NOT RUN. Do you get fuel in the bottle? If, yes fuel lines are correct and pump is working. If your pump is not working it requires a fix either relay, ecu trigger or fuse, maybe a rewire, walbro upgrade that's not here or there.

P.S. i wrote you a walkthough , but didn't post it because i didn't think your problem was timing related...

[DRFT240sx06]

yea think you're right that its not timing, my fuel lines are hooked up right, filter to inlet in the middle of intake and for to return line, I've got fuel pressure, but I don't think my injectors are pulsing, so I think something is wrong there, but I'm not sure where the problems at

[CotBU]

check your fuses all of them and relaysget a testlight or noidlight, and make a continuity tester.We need to test the injectors, injector harness and ecu.you can look over your wiring and see if anything looks whack before you start. post pictures of your setup engine bay , ecu... etc.

[otterman]

CotBU's leading you in the right direction.Do you have pictures of your injectors?

[DRFT240sx06]

unfournately I don't have any pics, and my computer is broken, Ive been writing on my phone, but I'll check all my fuses tonight, but I think my battery might be dead, I might need to charge it