From: mike on
On 8 Feb 2007 04:08:40 -0800, Tiit_Helimut(a)hotmail.com wrote:

>Right. The cover shows 11 fuses, not all of which there are fuses for
>in my fusebox.
>
>FL30A - ABS ACTR
>10A - TAIL
>15A - H/LAMP RH
>15A - H/LAMP LH
>FL25A - POWER WINDOW
>FL25A - RAD FAN
>FL30A - ABS MTR
>FL30A - IGN SW
>FL25A - ENGINE CONT
>FL65A - BATT
>15A - COND FAN
>
>That's all the fuses it lists, so I hope that's useful. Once I take
>the right fuse out and crank the engine with the accelerator floored,
>what will I expect to hear (will it sound any different than when the
>fuse was in)? Thanks!

I took a pic of a micra fuse panel (caution: it's a '93 micra so may
be differnt one in yours.). This fuse block is to the right of the
steering wheel ie INSIDE the car - there's panel - pull it off to see
the fuses.
I'll go an up load the pic and post the address here in a few mins...
From: Tiit_Helimut on
Thanks for getting back to me. I found the fusebox inside the car and
found a diagram on the back of the cover. The fusebox I have is a
different layout, it has 7 rows of 5 fuses, but it showed me which the
fuel pump was. I removed the fuse and floored the accelerator, whilst
cranking the engine, repeated several times, put the fuse back in, and
the car started first time (as if it had never had a problem!)
I know how to avoid this again thanks to you advice, but how did this
method work, and why wouldn't the car start in the first place (why is
flooding a problem)? Thanks for your time, and sorry for the endless
questions!

From: Tim.. on

<Tiit_Helimut(a)hotmail.com> wrote in message
news:1170967061.154125.116890(a)s48g2000cws.googlegroups.com...
> Thanks for getting back to me. I found the fusebox inside the car and
> found a diagram on the back of the cover. The fusebox I have is a
> different layout, it has 7 rows of 5 fuses, but it showed me which the
> fuel pump was. I removed the fuse and floored the accelerator, whilst
> cranking the engine, repeated several times, put the fuse back in, and
> the car started first time (as if it had never had a problem!)
> I know how to avoid this again thanks to you advice, but how did this
> method work, and why wouldn't the car start in the first place (why is
> flooding a problem)? Thanks for your time, and sorry for the endless
> questions!


Many modern Fuel injected engines suffer from overfuelling / flooding if
started from cold and then immediately shut off (or stalled), as for some
reason the ECU's programming is such that it injects waaay more fuel than is
actually needed for a cold-restart, and consequently there is too much fuel
to ignite.

There are at least a large handful of cars which are guarrenteed to flood if
shut off after a cold start, and the K11 micra is one of them.

If you are prepared, you can often effect a restart with a wide open
throttle and a long crank, but only if done immediately. If that fails
you'll need remove the pump fuse and / or plugs to dry them off.

If it happens again, you know what to do now!

Tim...


From: Stu on
Tiit_Helimut(a)hotmail.com wrote in news:1170967061.154125.116890
@s48g2000cws.googlegroups.com:

> Thanks for getting back to me. I found the fusebox inside the car and
> found a diagram on the back of the cover. The fusebox I have is a
> different layout, it has 7 rows of 5 fuses, but it showed me which the
> fuel pump was. I removed the fuse and floored the accelerator, whilst
> cranking the engine, repeated several times, put the fuse back in, and
> the car started first time (as if it had never had a problem!)
> I know how to avoid this again thanks to you advice, but how did this
> method work, and why wouldn't the car start in the first place (why is
> flooding a problem)? Thanks for your time, and sorry for the endless
> questions!
>
>

OK, here you go:

Flooding, if you haven't already realised, is a condition where there is
too much neat petrol and not enough air in the engine's cylinders for
combustion to occur, hence the engine won't start.

It happens because when the engine is cold, a higher amount of fuel is
injected to allow it to run smoothly. Once warmed up, the fuelling is
reduced considerably. If the engine is cut off abruptly during this cold
period, e.g. if you stall or move it then switch off abruptly, a large
amount of fuel gets injected without getting burnt, hence it lies
dormant in the cylinders and causes flooding.

Once in the flooded condition, you cannot get rid of the excess fuel and
restart, because more fuel is being added as fast as you can displace
it. This is where disabling the fuel pump comes in. It allows you to
stop more fuel going in until you've cranked the engine enough to get
rid of the excess. Holding down the accelerator helps because it admits
more air into the cylinders, thus getting rid of the excess petrol
quicker. Once this is done you can replace the fuse and all should be
normal again.

To prevent this happening again, you simply need to remember to leave
the accelerator alone for several seconds before switching off a cold
engine, and try not to stall! If you're not confident that you won't
stall, run the engine for a few minutes to warm it slightly before
setting off (you don't have to warm it fully). That should do enough to
stop it from flooding.


Phew....hope that's helpful ;-)


Stu

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From: Tiit_Helimut on
Thanks very much for the help and advice everyone! I'll remember what
you said, and I've booked myself into a basic car maintenance course,
which I definitely need! Thanks again!