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Old 11-01-2006, 02:16 PM   #1
Ian
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Car wont start

Hi all


Im having trouble getting fuel to my engine. I suspect the pump isent getting any power.

It happened at the randomest time. Driving along in nates car and he was in mine, we pulled over on nebo to swap back, left it idleing, I went to drive off, it stalled, refused to turn back on.

Had to be towed home. Now, despite my best efforts, it wont start again.

I have no idea whats going on. Any help would be appreciated.


//edit: Update:
I pulled the fule lines off, and fuel pissed out of both the lines and the engine side. Theres plenty of fuel in there.

Despite this, they engine will crank but will not ignite.

I tried putting my old leads in. No good.

Will try taking the plugs out next and making sure there all sparking.

This happened once before, i stuck my hand into the engine bay and rattled a bunch of stuff around and it fixed itself.


//edit second update:
Apon applying a multimeter, set to pick up 20V, it would appear the fuel pump is not getting any power.

I do not know why. The plug at the ECU seems fine. Im going to take it out and put it back in again, see if that helps, but does anyone elese know any reason why the ECU would see fit not to give the fuel pump any powah?


//edit again. I appear to be getting powah to the pump now, however the battery is nearly flat and wont crank the engine fast enough to start. FU**.
Need help

Thanks
Ian
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Last edited by Ian; 11-01-2006 at 04:05 PM.
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Old 11-01-2006, 05:44 PM   #2
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i still think there is a plug loose. the car cranks fine, starts and dies immediately! check allyour connections again
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Old 11-01-2006, 06:13 PM   #3
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nah man, doesent ever start anymore. Just cranks. And now the battery is flat. Id say its used up all the fuel preasure it had and now since its not getting any more, its dieing.

I called out a RACQ guy today to give me a new battery, but he said go buy a charger. He then took an intrest in my car and decided to try and help me. We were at it for an hour and we determined that the fuel pump isent getting any power :P but theres power comming outa the computer just fine, so theres a dodgy relay somewhere that must of been on the blink and died last night.

In other news, my multimeter is now broken! Or at least the earth thing snapped.

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Old 11-01-2006, 06:47 PM   #4
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The circuit should go from ECU to a relay then the pump. If you have a wiring diagram it should point to where the relay is. It's a case of following the circuit through.
My 929 fuel pump won't work if the MAF isn't open just a little.
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Old 11-01-2006, 07:25 PM   #5
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by MAF im assuming you mean AFM?
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Old 11-01-2006, 07:42 PM   #6
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Yeah, OK
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Old 11-01-2006, 09:13 PM   #7
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it sounds like the engine fuse in the internal fuse box...
car will start but stop if not pressure on pedal.
only an idea but give it a goe k.
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Old 11-01-2006, 11:44 PM   #8
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yeah we tried this... It was one of the first things we tried.

ill give it another go tommrow. Gota buy a new battery first.
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Old 12-01-2006, 12:16 AM   #9
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Three little things. 1 there is a little plug light that fits in the injector wiring that will
flash when the injector fires a simple test to prove ecu. 2 what happened when you
tried to arc the leads was there any spark. 3. After heavy cranking pop the plugs out
and see if they are wet to indicate fuel. If the injectors fire and the plugs are wet then
fuel and ecu are OK. Have you looked at the timing belt to make sure it hasn't come
off the dizzy wouldn't fire when theres no bely.
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Old 12-01-2006, 02:30 PM   #10
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Okey. If the timing belt came off it would of been evil death stop in your tracks.... It kinda just stalled and then wouldnt start again.

Im thinking it might have something to do with fuel preasure. Im gona go get more fuel and fill the tank up to half, see if that helps at all.

Were getting spark just fine.

Havent checked the plugs, but I am 99.99 percent certain its the fuel pump.
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Old 12-01-2006, 03:00 PM   #11
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ill have a look on saturday
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Old 12-01-2006, 07:57 PM   #12
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Filling the tank up isn't going to do anything. I can't tell from the above if your pump is working or not. What happened when you took off the pressure line off the fuel rail and tried to start the car? Did fuel start to fill the bucket?

Also, can you now confirm 100% that you have 12v on the Black/pink wire at the fuel tank plug when tring to start the car?
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Old 13-01-2006, 01:11 AM   #13
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If your getting spark its not a belt then.
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Old 13-01-2006, 05:01 PM   #14
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do a computer test!!
i am a strong feeling it could be the AFM! Mine did the same thing.
or, it could be a dead ECU!
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Old 13-01-2006, 05:21 PM   #15
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Oookey... heres where we stand:

Its definatly the pump power suply. Taking the return line off and cranking the engine resulted in a whole lot of nothing.

Rigging up a fused power supply (my stereo power cable unpluged from the amp and with a spliced speaker wire) and put that into the (black and pink) positive wire for hte fuel pump. Apon reconnecting the battery I hear a pump-like noise. Walla! the car starts!

I then drove it up into my garage where I can jack it up easily and removed the wire.

I have a sneak feeling a wire I found rolling around in my engine bay thats not pluged into anything may be the cuplrit. Problem is I cant find where the damned thing plugs in.

Ah well. Progress!
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Old 13-01-2006, 05:24 PM   #16
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exellent will the car be ready 4 the cruise on the 4 of feb. because i can't wait to see it. i have never seen a bg turbo in real life before. :^)
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Old 14-01-2006, 01:39 AM   #17
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dear c*ap fu*k $hit!

I tried taking it for a test drive. Didnt even notice the heat guage. Was runing very hot.

I dont think its done any dammage. It was a cold night and I was running it very slowly. However the heat guage was just bellow the H when I got home and it was only then I realised. The radiator fan aint going. **** **** ****.

Anyway, I turned the engine off as soon as I had seen it. By this stage id been cooling the turbo for about 15 seconds and I had to make a quick decision about the turbo or the heat, and I decided to turn the engine off cold turky.

The engine was running fine, maybe a bit underpowered.

God Damn I hope the heads okey. I hope the turbo is okey. There were no evil signs or smokes or steams comming out of the engine, and it had plenty of radiator fluid.

note to self: Keep an eye on the heat gauge! **** **** ****.
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Old 16-01-2006, 01:32 PM   #18
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have u had any luck witht the car of late apart from the over heating problem. and did u get that fixed.
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Old 17-01-2006, 02:16 AM   #19
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Car is now running and driveable. I droped tim home in it tonight .

Still issues with the front right wheel but its booked into ABS on wednesday to get sorted.
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Old 21-01-2006, 10:34 PM   #20
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So exactly how did you fix it?
I have a Familia 4WD turbo rally car that is doing the exact same thing - starts but then dies as soon as you try to accelerate. Fuel pump is definately working because it pumps out a ****load with the line disconnected and you turn the key. Might try a fuel pressure gauge just to see if it's dropping out after it starts. Might also see how long it will idle.
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