Res' 6a12m coupe

[destinationtoby]

Look the goods man, nice and clean. a++ for the effort put into this

[Res]

hey guys, rewiring the whole coupe with a 6a12m loom, everything in the engine bay is plugged in besides these 3 plugs which seem to have nothing to plug into

can anyone help me identify them?
(circled and numbered to make easy to see which ones i need to know about)

[Sahin]

Number 2 plugs into a big plug on the side of the intake manifold

[Daniel2019]

I think #3 is a gearbox plug. And #1 looks like female socket that slides onto intake manifold bracket.

[Res]

So, Finally my wiring is working for me after many months.
but as it always goes god/jebuz/allah and all the other gods hate my car,

here is my problem and I wager nobody has every had this problem before on this forum.

my car has spark and air and some fuel (possibly small ammounts) so my car will fire a few cylinders then die from fuel starve
(we determined it was fuel starve because we have spark and air, and when we sprayed "start ya bastard" aerosol fuel it ran till the aerosol fuel that had been sprayed in was gone (3-5 sec)
anyway we checked the lines to the fuel rail, and yeah they are getting fuel when cranking, tested by taking line of fuel rail and cranking into bottle. (not sure if its enough fuel but there seemed like there was enough)

note, this is also fresh fuel bought today, tank was drained of old fuel before these tests.

anyway the big WTF moment was we opened the fuel cap and fuel started coming back out of the fuel filler spot, lots at start then it started to trickle and kept trickling out for as long as it was uncapped. and the tank was drained of all fuel and only has 5L in it, and that 5L is coming back up!?!?!? dafuq

If you know what is wrong with my fueling please let me know, I will be so happy to get the coupe running after so many months and this seems like the last thing.

TLDR; I am having fueling issues, fuel is pumping to the motor but doesnt seem to be enough for the motor to run for more than 1-2 sec

[Daniel2019]

c**t's fucked. Have you got the fuel pump plugged in the right way?

[Res]

c**t's fucked. Have you got the fuel pump plugged in the right way?

Yeah seems to be right, Black to black, red to yellow

its not like that could be reverse polarity. and if it was it wouldnt pump some fuel to the motor

[Daniel2019]

Yeah thats what I figured.. but can't think of anything else that it could be.. im sure you've double checked all your lines and stuff are correct and you haven't swapped any.. although I suppose that would mean no fuel to motor anyway..

That's a real corker you've got there. I'm stumped. Thats f**king retarded

[Res]

yeah I know man, its fucked as. so unhappy considering its the last thing to get the motor running well, so i can put the car back together.

We are swapping the whole fuel tank out on new years day in case all my factory car parts are cursed. so thats a new fuel pump, tank and sender unit.
hopefully that fixes the issue.

fingers crossed some magic happens when we put the new tank in

[Daniel2019]

Have you double checked all your wiring is OK?

[Res]

I have 1million times checked, so many times lol.... I have gone through 4 looms till I got a perfect one

[Daniel2019]

Yeah figured.. only other option would be to get a hold of a scan tool with a datalogger and see what's going on.

Or blockage somewhere but that doesn't make much sense either..

[Daniel2019]

Try hooking your pump up to power directly (use spare car battery to give power) and see if it will continually work as it should.

Or, you might have a blocked fuel rail.

[Technikhaus]

I'd guess possibly blocked fuel rail.
If you disconnect the fuel filter, does it come out slowly?

[Res]

yeah i'll hook it up direct to test


and yeah we disconnected the line at the fuel filter and while car was off the fuel flowed out at what seemed a normal rate

I'll check fuel rail, thats easy enough to check if its blocked

[Daniel2019]

Yep I reckon blocked rail.

[Bennoz]

Could also be blocked return line or atmo vent line

Also what reg you running?

[Res]

Could also be blocked return line or atmo vent line

Also what reg you running?

stock 6a12 reg, that came with the motor and was working fine when the motor ran 3-4months ago
could be blocked but i'll have to check, although i think a blockage is unlikely as the return line also has fuel flowing through it

[Res]

I will also take the fuel rails off and make sure the injectors are injecting while im at it
shoot a bit of fuel everywhere

[Bennoz]

You've probably already checked, but you got the lines round the right way? I.e. line in goes to rear rail, return line comes off the reg. I've screwed that up more than once!