Fuel pump controller workaround

[babu]

How to diagnose?

Good thread. Very useful information. Tnx.

But how do one know for sure its the fuel pump controller if (or when - god forbid) the bike shuts down. Is there i way to diagnose it before one starts dismantling stuff and cutting wires?

--
babu

 

[KarltenM]

Dongle

Good thread. Very useful information. Tnx.

But how do one know for sure its the fuel pump controller if (or when - god forbid) the bike shuts down. Is there i way to diagnose it before one starts dismantling stuff and cutting wires?

--
babu

If you have any bm , it's wise to have one of those in your kit and it will diagnose all sorts of gremlins- you might not be able to fix it but at least it tells you where to look !!

 

[bustupbiker]

Good thread. Very useful information. Tnx.

But how do one know for sure its the fuel pump controller if (or when - god forbid) the bike shuts down. Is there i way to diagnose it before one starts dismantling stuff and cutting wires?

--
babu

Pull over to safe spot, deos all the rest work? if so turn key, can you hear the fuel pump running!!!!! No. change controller. and be on your way..

 

[Dennis the Menace]

When I got my 12 4 years ago.

I found what was missing was a spare BMW plug and connector for electrics to be used for electric jackets and battery charger when in garage. I duplicated BM socket but wired straight to battery (some people call this hard wiring) I have always carried a spare plug + wire with terminal conectors on wire ends in case a live wire connection is needed (damage to connectors or wire on electric jackets).

Picture 2 is connected to battery charger in garage.

Picture 3
This wire and plug could/would be used to connect to fuel pump plug using terminal connectors. It would also be easier to give away to a fellow motorcyclist as the total cost is only £5.00 for plug, wire and connectors.

I used the standard BM connector for Autocom but this could easily be swapped round. Thereby the Cannbus system would shut down power to socket 90 seconds after ignition was switched off.

 

[Wapping]

So I did, by eamail, today.

I wonder if you can help me, please?

There have been several (probably lots, if your dealers' responses are genuine) well documented reports of the fuel controller, that sits on top of the fuel pump, failing on 1200GS and GSA machines.

I was wondering whether the lash-up was likely to do some unseen damage of which I am unaware? Or, whether, after several miles, somehow the lack of the controller would somehow 'confuse' the fuelling system, leading to other problems.

I hope that you can help me and look forward to hearing from you. In the meantime, my 06 GSA is performing faultlessly and is great fun to ride.

Thank you and kind regards,

I have received a response, of sorts, from BuMW Customer Services.

They have referred my question to BuMW's Technical Department....

 

[Dennis the Menace]

Crickey Wapping, What an optimist.

Expecting BM to give the answer you seek.

Dont think BM Tech people can think outside the envelope and if they could they wouldn't give the answer you seek.

This is the company that took the rear wheel wrench out of the tool kit, so you couldn't change the wheel and risk pulling the bike on top of you.

Imagine them saying cut into this wire and join into this plug. We are talking electric and petrol here.

The Tech's I know who have 12's I know carry spare fuel controllers with them.

Why don't BM do the honest thing and give new controller free of charge to anyone who has one which has gone pop (out of warranty).

Now I am being an optimist:

 

[HondaMan]

I am thinking of carrying a spare for long trips, does anyone know the cost of the part?

 

[John Armstrong]

I am thinking of carrying a spare for long trips, does anyone know the cost of the part?

Yes


About £83

 

[HondaMan]

Yes


About £83

Will get a bit of wire instead!

 

[Frank Warner]

.. must be a regulator somewheres.

More thoughts - if the regulator is external to the fuel tank .. there will be a return hose to the tank to let off the excess pressure. If there is no return fule line than teh regulator is inside teh tank .. and possibly in the pump .. I know the older bikes have a pressure relief valve (it operates at 90 PSI to stop excessive pressure causing teh pump to fail).

 

[Frank Warner]

some of the PCB components are burnt out.

RIP.

If you put a switch in your bypass you can then turn the pump off and on. Actually you could wire up a two pole switch to bypass the pump controller and use that instead of taking a spare?!

I don't think teh controller talks back to the EFI .. just a simple slave/listener. So no confusion should arise. Except on the bm mechanics face.

 

[marvellous thingys]

£10,000 bikes for christ sake.
Why the hell should you be modifying and spending £83 on spare just in case parts.
Cmon guys...get a grip, stand up to BMW.
Why arent the dealers going back to them on our behalf. Are they in each others pockets by any chance?
Not unstoppable.......unbelievable!

 

[Wapping]

£10,000 bikes for christ sake.
Why the hell should you be modifying and spending £83 on spare just in case parts.
Cmon guys...get a grip, stand up to BMW.
Why arent the dealers going back to them on our behalf. Are they in each others pockets by any chance?
Not unstoppable.......unbelievable!

Give it a rest, pal.

 

[wilbjr21]

Give it a rest, pal.

+1 ..........Just read his posts. Looks like BMW TEKKY has re-incarnated himself.

 

[dresdahonda]

Has anyone got a spare dead fuel pump controller I could have?

Just planning a trip to the Alps and don't really want to buy an expensive spare fuel controller "just in case".

Does anyone have a dead one which they would be prepared to let me have?

Then I can use the connector from it to make up an emergency lead, as per this thread.

Happy to pay any postage.

Many thanks.

 

[GrinningGSer]

Does anyone have a dead one which they would be prepared to let me have?

Ask your friendly local dealer, they have loads of failed controllers.

 

[bustupbiker]

Just planning a trip to the Alps and don't really want to buy an expensive spare fuel controller "just in case".

Does anyone have a dead one which they would be prepared to let me have?

Then I can use the connector from it to make up an emergency lead, as per this thread.

Happy to pay any postage.

Many thanks.

***trip to the Alps ***

Me too this Saturday, i have spares in the tank bag...

 

[The White Rabbit]

So Tim, is your workaround a goer given the concern that it is CANBUS powered, I read in your other thread some comments by Wapping that it may need to work from the battery?

 

[Tim Cullis]

The pump needs electrical power, taking it from the battery is an option, but you then need to disconnect it when the bike is stopped. The advantage of the workaround as implemented by me is that it takes the power from an internal source that is switched off when the bike isn't running.

It's still doing the business some 800 miles later, and I shall shortly be starting the ~1800 mile ride home.

 

[The White Rabbit]

It's still doing the business some 800 miles later.

That's good enough for me. Thanks.