Power Commander Nightmare!! - MVAgusta.net
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post #1 of 34 (permalink) Old 06-16-2011, 01:42 AM Thread Starter
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Power Commander Nightmare!!

Hey guys,

Finally I got my ’07 MV F4 fully adjusted as far as a ride is concern. The suspension adjustment and ride height is perfect. However, like many riders on the quest for the ultimate riding machine, I decided to install a "Power Commander" to smooth the power on mid turns (I already have the Racing ECU and the mid pipe upgrade, so I get back fires every once in a while).

I usually do most of the works on my bike (except for the engine internals), and have installed many Power Commanders in the past (never on a MV). So, I removed the seat, the tank, install the PCIII, put the tank back on, try to start it, it cranked but I would not start (WTF), so I checked all the connections and 30 minutes later…..nothing ([email protected]#[email protected]$!^). So, I removed the PCIII, and put everything back to stock, then try on start the bike again, I did cranked but it would not start ([email protected]#[email protected]$!%% again)

I read on another discussion something about a latch relay. Is there such a thing on this bike? Do I need to have the set on to start it? Also, is there a fuel pump reset after I disconnect the battery?

Any help or direction would be appreciated. Cheers

Tony.
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post #2 of 34 (permalink) Old 06-16-2011, 02:51 AM
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Question

If the bike cranks but won't run your problem is probably fuel, the battery has not got a reset and the start relay obviously comes in. Are you sure you put the right plugs back on the righ injectors?
Can you hear the fuel pump prime when you turn the ignition on ?

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post #3 of 34 (permalink) Old 06-16-2011, 03:41 AM
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Check the fuel lines in the tank. Ethanol tends to eat fuel lines for breakfast.

Slow is smooth and smooth is fast!!
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post #4 of 34 (permalink) Old 06-16-2011, 05:43 AM
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check to see that you didnt pinch a fuel line when you put your tank back on. Might as well check couplings while you are there.

good luck
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post #5 of 34 (permalink) Old 06-16-2011, 01:53 PM Thread Starter
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Thank you all for the replies (and you all have great troubleshooting ideas).

Needless to said, last night I could not sleep (my baby was hurt!!, thinking how much money is it going to cost for fix a “MV Agusta”, Did I fried the ECU?, Broke the injectors? Etc)

So, this morning before work, I removed the tank for the 5th or 6th time, and check all the cables. Then I noticed that there are 2 IDENTICAL female cables where you plug the fuel pump from the tank, so I tried the one on the right, plug the fuel lines and my baby started at the first crank (I’ll be able to sleep tonight, lol).

So, here are a couple of questions:
1- Who in the right mind will put 2 identical connectors (4 prongs) 3 inches apart?
2- What is the second connector for (the one on the left, right on the bottom edge of the air box, nothing attached to it)? Should I worry about it?
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post #6 of 34 (permalink) Old 06-16-2011, 04:32 PM
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Ask Noel. He's up on Mfg's and electronics. C'mon Knurl- give us your best rant----

I got mine. Boy do I ever got mine.
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post #7 of 34 (permalink) Old 06-16-2011, 05:58 PM
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Welcome to the Italian version of how to do electronics. The classic [email protected]#k.
Otherwise known as 'take it to your dealer' so he can tear his hair out when he doesn't speak Italian.
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post #8 of 34 (permalink) Old 06-16-2011, 07:32 PM
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Question Yeah

Quote:
Originally Posted by falco888 View Post
Thank you all for the replies (and you all have great troubleshooting ideas).

Needless to said, last night I could not sleep (my baby was hurt!!, thinking how much money is it going to cost for fix a “MV Agusta”, Did I fried the ECU?, Broke the injectors? Etc)

So, this morning before work, I removed the tank for the 5th or 6th time, and check all the cables. Then I noticed that there are 2 IDENTICAL female cables where you plug the fuel pump from the tank, so I tried the one on the right, plug the fuel lines and my baby started at the first crank (I’ll be able to sleep tonight, lol).

So, here are a couple of questions:
1- Who in the right mind will put 2 identical connectors (4 prongs) 3 inches apart?
2- What is the second connector for (the one on the left, right on the bottom edge of the air box, nothing attached to it)? Should I worry about it?
I just went through both my wiring looms and could not find the "other identical" plug you refer too? Any pictures ? Both male or both fe-male ?

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post #9 of 34 (permalink) Old 06-16-2011, 07:51 PM
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Wink 4 wire plugs?

like Donsy said i can only find one......the one to the fuel pump coming from the right hand harness '05 F4 '08 Brutale


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post #10 of 34 (permalink) Old 06-16-2011, 08:17 PM
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OMFG its trying to produce offspring, one piece at a time!

Sorry lol

"You live more for five minutes going fast on a bike than other people do in all their life" #58

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