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November 5th, 2017, 12:14 AM   #1
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Fuel pump lost power

Hi guys im new.
Took my 09 te 450 for a second ride and the fuel pump stopped and i got 4 long and 1 short blinks.
Put a multimeter on the plug and 12v but nothing will a test light... i assume dead ecu?? Wires carry the load fine, pump is fine.
To get home i put a jump wire into no1 fuse and ran/stopped like it did the first ride.

Best place to get a ecu please
Thank you
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November 5th, 2017, 01:56 AM   #2
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4 long 1 short is an error for the fuel pump relay. Check that one before you buy a new ecu.
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November 5th, 2017, 01:59 AM   #3
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Originally Posted by jon andersson View Post
4 long 1 short is an error for the fuel pump relay. Check that one before you buy a new ecu.
Thank you so much!!!
Where is the fuel pump relay on these machines?
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November 5th, 2017, 12:14 PM   #4
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That was a good question, I have never thought about it..... From googling around it seems like that relay is in the ecu, so maybe you do need a new ecu....?
Anyone to confirm it?
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November 5th, 2017, 10:25 PM   #5
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I sure do and thanks again it is in the ecu and im just fitting a external one.
The bike ran on a donation ecu today
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November 5th, 2017, 11:58 PM   #6
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I'm not sure I understood everything but, on the connector of the injector, the orange wire to a "permanent" 12 V ( Fuse F1 )

1 ==> to have 12v power on the injector :

==> Press the button started engine
==> The starter turns
==> The engine turns
==> The alternator is rotating and the voltage product
==> The voltage regulator detects the voltage increase, regulates the voltage and closes a contact which activates the main relay (K2) which feeds the secondary circuit (lighting / ECU, ect ...)

2 ==> the ECU opens the mass - when receives the information allow an injection properly

temperature
depression
entered from the air into the engine
top dead center (TDC),
etc.....
so if the 12V does not arrive, possible problem:

- FUSE 1
- main relay ( if off services : no secondary power )
- Voltage Regulator ( if off services : no secondary power )
- orange wire is cut

if the 12v arrives at the connector of the injector, the ECU to a malfunction or does not receive the information needed for the injection
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November 6th, 2017, 02:07 AM   #7
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My car wasn’t running trace it a corroded fuse (water had gotten to it. Looked OK to the naked eye) replace it all’s good.
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November 6th, 2017, 03:01 AM   #8
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Originally Posted by Smokin View Post
I sure do and thanks again it is in the ecu and im just fitting a external one.
The bike ran on a donation ecu today
Ok so then the question is where to find one. If it turns out to be expensive you might want to look at vortex or maybe even ignijets instead. The you can tune them as you see fit. Vortex seems relativelly simple to use.
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November 6th, 2017, 04:12 AM   #9
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Oh no.... I confused injector and fuel pump
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November 6th, 2017, 12:35 PM   #10
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All good mate.
I appreciate all comments from everyone.
I just fitted a external relay to the existing fuse.
The power was going into the ecu.. pin 15 but not coming out when fi is activated pin 14
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