Maybe the stupidest question ever!!

starkersEB · 06-01-2007, 03:45 PM

Like the title says.

Here goes, Can you flood an EFI car? for some reason i was thinking to myself the other day is it possible. My thoughts are no, but id like to know for sure.

CHEERS.

xalent · 06-01-2007, 04:05 PM

No - as long as your ignition is working

Pressing on the throttle pedal when not running or starting won't add any excessive fuel. The computer only administers the required amount

rayner22 · 06-01-2007, 04:08 PM

Open oil filler cap, stick end of hose in, turn on tap = engine flooded!!
Seriously what he said^^^^^

Tech Trainer · 06-01-2007, 04:15 PM

Yes you can. However usually there needs to be something wrong to crate this problem. Something along the lines of your ignition system failing or having a weak spark, a dirty or sticking injector, excessive fuel pressure or something along these lines.
But do you know how to clear a flooded EFI engine?

I will wait for answers before posting the correct answer in the case of most Ford vehicles.

Ghiadude · 06-01-2007, 04:23 PM

can also be caused by computer/crank trigger malfunction although its not commonplace.
to answer the question - remove spark plugs, remove fuel pump fuse - crank engine.

The Mighty Red · 06-01-2007, 04:24 PM

Quote:

Originally Posted by Tech Trainer

Yes you can. However usually there needs to be something wrong to crate this problem. Something along the lines of your ignition system failing or having a weak spark, a dirty or sticking injector, excessive fuel pressure or something along these lines.
But do you know how to clear a flooded EFI engine?

I will wait for answers before posting the correct answer in the case of most Ford vehicles.

Floor it , WOT, the computer senses that the car is flooded.

**Silver Ghia** · 06-01-2007, 04:25 PM

I dont think you can flood a BA, but I know they can flood themselves.

See thread: http://www.fordforums.com.au/showthread.php?t=57735

**GasoLane** · 06-01-2007, 05:06 PM

Quote:

Originally Posted by Tech Trainer

But do you know how to clear a flooded EFI engine?

Undo the big nut on the bottom of the motor and let it all run out?...

:

fairmont1998 · 06-01-2007, 05:53 PM

Quote:

Originally Posted by Tech Trainer

But do you know how to clear a flooded EFI engine?

Hold the accelerator at WOT while cranking the starter. The ECU sees WOT and keeps the injectors closed while cranking.

1600GT · 06-01-2007, 06:19 PM

BA XR8's can flood for sure!!
mine has numerous times....

it happens when cold, like first thing in the morning.
it fires, then instantly stalls.
then, because the engine has fired, the choke module has dumped a heap of fuel into it, flooding it.
the ECU then senses too much fuel, and kills the spark and injectors until the fuel in the cylinders is gone.
the only way to fix it (apart from walking away from it for god only knows how long...) is to crank it over... and over... and over... and over... last time it was for nearly 20 minutes!!! yes 20 mins...
in the end, i had to jump start it to get it turning over fast enuf to fire...
when it decides to fire, finally, it runs very rough and u have to hold ur foot on the go peddle to keep it at 1500 revs so it will idle, then it warms up after 5 or so minutes, and it runs ok again....

ohh, and ford's response.... ' dahhhh, we cant find a problem. are u sure it does this...??'
i must be dreaming it up, the cloud of black (un-burnt) fuel smoke that fills my backyard, and the smell of raw fuel every time it happens...

anyway... yep, ive flooded an EFI car many times.... or is that it floods itself for me...

:

**Full Noise** · 06-01-2007, 06:51 PM

It probably happens more than people think. Here's a thread on a BA that had a flooding problem.

http://www.fordforums.com.au/showthread.php?t=79209

xalent · 06-01-2007, 08:04 PM

So some engines can flood themselves through poor efi programming, but I think the question was whether the driver can flood the engine, i.e by pressing on the throttle without the engine running as per carby engine

Tech Trainer · 06-01-2007, 08:05 PM

WOT the engine. During crank mode the computer will not inject fuel if it sees the TPS at WOT (approx 4.5v).

Congratulations to those who got it right.

Tech Trainer · 06-01-2007, 08:08 PM

Quote:

Originally Posted by xalent

I think the question was whether the driver can flood the engine, i.e by pressing on the throttle without the engine running as per carby engine

In some early EFI systems if you "tried to give some gas" whilst trying to start the engine you could achieve the flooded engine but with the advance in Technology and programming this is rare.

Boza · 06-01-2007, 08:41 PM

i remember my mum had one of those wide body camry's and she managed too flood it at least thats what the racv man said when he started it there was a big cloud of black smoke behind the car and iy stunk of petrol guess he was right

1600GT · 06-01-2007, 10:50 PM

Quote:

Originally Posted by Full Noise

It probably happens more than people think. Here's a thread on a BA that had a flooding problem.

http://www.fordforums.com.au/showthread.php?t=79209

ohhh nice one Danny, very nice... :hihi:

crYnOid · 06-01-2007, 11:41 PM

I can make my EB2 flood by trying to start the car and before it fires letting the key go. It sometimes happens because normally it will take approx. 1 sec to start, so that is how long I generally turn the key. So when it takes longer then 1 sec to start (and i'm not paying attention) I release the key too soon. Then the second try results in the engine just turning over and not firing. WOT while starting sorts it out.

Walkinshaw · 06-01-2007, 11:48 PM

turn the key from off to on 300 times. That will flood it

starkersEB · 07-01-2007, 02:51 AM

I cant believe there are this many comments on this question, but as i thought no matter how much you put your foot down if she aint running no juice goes in
CHEERS

Bossxr8 · 10-01-2007, 11:41 AM

I did it to my ED. Just switched the key back a millisecond before it fired up and must have sent the system haywire. Wouldn't start after that. Got told to put the foot to the floor while starting it and kicked over straight away.

xbgs351 · 10-01-2007, 11:45 AM

Quote:

Originally Posted by Silver Ghia

I dont think you can flood a BA, but I know they can flood themselves.

See thread: http://www.fordforums.com.au/showthread.php?t=57735

That's my experience. Picked mine up from the dealer drove 100m down the road and parked it. When I went to start it, it flooded. It was a sign of things to come......

Hunter · 10-01-2007, 12:14 PM

Hehe, just wait till the MAP sensor goes... black smoke city!! When my cousin's EB dropped its MAP sensor, we disconnected it during testing and it worked quite well... but very bloody rich. I reckon it was almost pouring fuel in

Selwonk · 11-01-2007, 09:32 AM

[QUOTE=crYnOid]I can make my EB2 flood by trying to start the car and before it fires letting the key go. It sometimes happens because normally it will take approx. 1 sec to start, so that is how long I generally turn the key. So when it takes longer then 1 sec to start (and i'm not paying attention) I release the key too soon. Then the second try results in the engine just turning over and not firing. WOT while starting sorts it out.[/QUOT

just drive along at about 100 kays turn key off pump throttle about 20 times and turn key back on very good fun but will generally only work in carbed cars!!!

Ringo · 11-01-2007, 01:17 PM

Oh yeah.....

I've 'fixed' a flooded Maxima, a flooded Celica, and a bunch of flooded BMW's (I used to work for them)

The common cause seems to be cold started and stopped and few times on a driveway to position the car to wash. After the wash she no go...

The dead giveaway is when your cranking it it fires breifly then stops again. Put your foot flat to the floor and hold your breath and crank it till it fires.

I'm sure the amount of fuel that goes down the exhaust stuffs the cat convertor....