RB20 flooded with fuel!!!! HELP!

[blackrb20silvia]

Hi guys

this thread is for those out there with mechanical knowledge and auto elects.

Right im having troubles with my rb20 after 6 months of the road i am finally ready to kick the bitch over last night,

after checking everything in the engine bay was connected and tight we had no luck she just would not fire after bout 5 attemps the motor sought of just siezed a friend sugested hydrollic lock so we waited but still locked.

took the coil packs off plugs came out and were wet as with fuel, hit the key to release the lock and a bout a whole litre of fuel came rushing out of cylinder six and drenched my mate with fuel

he said he never seen so much fuel come out a cylinder and sugested that the injector must be stuck wide open,

Now i took the inlet manifold of so that i could get to the injectors as i did i noticed that in the runners after i bolted off the top of the inlet where some filled with fuel some with alot and some with a little

i have never come across this before why would there be fuel in the inlet runners?would it be the injectors are ****ed or what also there is no spark from the coils could these problems be related or not?

I have never had this car running yet bought it smashed and is now some good mods like t4 turbo custom manifold front mount ect....

if anyone knows there shit please help out im a long way from profesional help and its dificult to get the car somewhere where a pro can look at it im pretty handy with a spanner and my mates advice falls short on this shit even though he has been a mechanic for 10 yrs please any help or feed back would be greatly appreciated

thanks all

matt

[Cubes]

Some times you have to bite the bullet and send it to a workshop that is familiar with Imports & performance. Not a normal mechanics shop that happens to have a dyno.

[blackrb20silvia]

Some times you have to bite the bullet and send it to a workshop that is familiar with Imports & performance. Not a normal mechanics shop that happens to have a dyno.

you see thats the thing i live like 2 hrs past newcastle there are only dick head V8 piss and dribble faggots up here the closest work shop would be newcastle

so 1... the car does not drive

2... even if it did not registed

3...cant afford 2 tow it to some 1 just to say ..."oh ur injetors are ***ed"

im only goin that path if i really really have to i just want to know does anyone know why this would happen

ie... are the 2 problems related

another theory is that for some reason the injectors rnt pulsing but r just constantly squirting

anyway my injectors r being tested tomorrow will find out if they r the cause of the flood of fuel in cylinder six and maybe why there would be fuel in the inlet runners????

so fingers crossed it will be sorted tommorrow

but i would still like 2 know other peoples opinion the more theories i have the better and faster i can eliminate the problem

matt

[Cubes]

It is a difficult one as you have never had the car running.

Is it running an aftermarket ECU? Different Injectors?

[blackrb20silvia]

It is a difficult one as you have never had the car running.

 

Is it running an aftermarket ECU? Different Injectors?

no they r only running a factory ECU which we had in a friends R32 worked fine and it still runs standard injectors

i know it sounds stupid but im changing to a wolf 3d ver4 wire in but i just want to get it running before i spend the money make sure everything is ok so i dont encounter these problems later and have to do the process of elimination again

so i know the computer is fine, injectors will be checked tomorrow so i just want to know what else i should check the last option is getting an autosparky to come have a look but only as a last resort and have no other option or have no where else to go.

its not that i cant afford it its just that i have hand built this car from scrath after the accident the only thing that hasnt been changed and im serious it is the only thing is the wiring and as you can tell in no sparky so thats a last option

:goddam:

matt

[meggala]

ignitor module and coil packs would be another place fuel pressure reg fuel pump.

cheers

[R31 POWER]

Sounds like maybe it's not getting spark.I'm guessing from your name the RB20 is in a silvia? and you have just done the wiring.

I'd check to see if it's getting spark coz I had the same prob putting the RB20 in my R31.It was one wire that we connected wrong and the motor cranked but did'nt fire.So yer check all power and earthe to the ECU

[blackrb20silvia]

thanks meggala and r31

meggalla the fuel pump is workin fine straight from sss automotive out of R32 gtr have checked the regulator how do i do that? and yeah i was quitely thinking the coil packs my self does anyone know the pin out diagram for the coil packs, and also some of the coil packs have R32 GTR written on them like what the wreckers writem on things in pink texta what is the dirrerence in the coil packs or the pin outs?

and R31, yeah ive been told that it could be a wire not conected or something like that not actually having done the wiring conversion myself i dont know where 2 start all that i did after the smash was fixed was connect all the wiring ,every earth i found i earthed every connector i found i tried to find its mate but as you would have found out there r some connectors that rnt used so i really dont know where to start with that either

but thanks guys i feel that the answer lies in this forum and i apprecite the time for the replys its all helping believe it or not

matt

[blind_elk]

If you remove the fuel rail from the manifold, you can then inspect the injectors to see what they do when:

1 - Prime (turning IGN to ON).

2 - Crank - turn IGN to START

In case of 1, there should be no fuel coming out of the injectors. In case of 2, you should see each injector spray fuel as engine turns over.

You can simulate 2 by removing CAS (leave connected to loom), turn key to ON, and rotate CAS shaft by hand.

To test the FPR, you need a pressure gauge to insert between fuel filter and fuel rail.

[blackrb20silvia]

If you remove the fuel rail from the manifold, you can then inspect the injectors to see what they do when:

1 - Prime (turning IGN to ON).

2 - Crank - turn IGN to START

In case of 1, there should be no fuel coming out of the injectors. In case of 2, you should see each injector spray fuel as engine turns over.

You can simulate 2 by removing CAS (leave connected to loom), turn key to ON, and rotate CAS shaft by hand.

To test the FPR, you need a pressure gauge to insert between fuel filter and fuel rail.

THANKS FOR THE ADVICE ELK

just a q though with the rb20 fuel rail the injctors dont bolt in they just sit in the rail,

if i try to test them wont the pressure of the pump blow them out of the rail?

that is the reason why i havent alredy checked the injectors cuz everythin is out neway but i thought that if there was pressure on the rail they would shoot out :confused:

[yogi000]

had this happen to a sr20 when we tried to run larger injectors on the stock ecu (sard 650's). Make sure they are stock injectors, which should have red tips on them (270cc high impedance). Running injectors with incorrect impedance might cause this too.

But they are definately stuck wide open.

[blackrb20silvia]

had this happen to a sr20 when we tried to run larger injectors on the stock ecu (sard 650's). Make sure they are stock injectors, which should have red tips on them (270cc high impedance). Running injectors with incorrect impedance might cause this too.

But they are definately stuck wide open.

yep they definatley stockos red tops, anway im having them test tomorrow so ill keep ppeople posted

PS what bout my spark problem?????? :confused:

[blind_elk]

THANKS FOR THE ADVICE ELK

just a q though with the rb20 fuel rail the injctors dont bolt in they just sit in the rail,

if i try to test them wont the pressure of the pump blow them out of the rail?

that is the reason why i havent alredy checked the injectors cuz everythin is out neway but i thought that if there was pressure on the rail they would shoot out :confused:

You're probably right there. :Oops: Been a while since I touched the injectors in the RB20. I know the L24E and RB25 have the injectors firmly attached to the fuel rail.

[blackrb20silvia]

You're probably right there.  :Oops:  Been a while since I touched the injectors in the RB20. I know the L24E and RB25 have the injectors firmly attached to the fuel rail.

LOL

no worries mate, im bitting the bulletand giving a local auto elect a chance they r a specialist in EFI,

GIVING THAT HE AND HIS OLD MAN HAVE A COMBINED EXP OF BOUT 40 YRS

than ill give them a go ill keep u posted on the progress

im betting that there is one or two wires not connected and maybe not pulsing the injectors but holding them open??

oh well thanks anyway

ill post soon