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Headed to the dyno, more ecu questions

Started by Monsterlover, July 13, 2010, 04:16:55 PM

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Monsterlover

July 13, 2010, 04:16:55 PM
Bike:  Was 99 750ss ie

is now: 900ss ie.  I reused the harness and swapped the engine and ecu.

The bike had DP pipes and a stock airbox lid when I got it.  Ive since cut the lid for more air.

I got a PC2 off ebay and damned if I just tonight found out I got the wrong one.  It's for a 00-01 750 or 900ss and I've got the 99.

I just need to know where the bike is at fuel wise, hence the dyno.  At this point I can either run the stock 900ss ecu i have now, or the original 750ecu which is the DP version.  I know it worked fine when it was a 750.

I already destroyed one 900 engine last year in this bike.  However, Im convinced that had everything to do with a dropped intake valve and not so much a fuel issue, though I did feel it was lean.

At this point I can dyno with either ecu, and I have an extra uncut airbox lid that I could throw on there to lean things out.

Thoughts?
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

DarkStaR

#1
July 13, 2010, 04:35:45 PM Last Edit: July 13, 2010, 04:39:15 PM by DarkStaR
Have you tried fitting the PC anyway yet?

If you can hook it up, it "might" end up working for you.

Some models are exactly the same just with different lengths of wire...

Monsterlover

#2
July 13, 2010, 04:48:33 PM
Really?

I know for sure the 99 900ecu cannot be replaced by a 2000 900 ecu, the pinouts are different and while the bike will crank, it won't fire up.

I'll try it anyway.
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

DarkStaR

#3
July 13, 2010, 05:07:31 PM Last Edit: July 13, 2010, 05:10:01 PM by DarkStaR
Quote from: Monsterlover on July 13, 2010, 04:16:55 PM
...
I got a PC2 off ebay and damned if I just tonight found out I got the wrong one.  It's for a 00-01 750 or 900ss and I've got the 99.
...
Quote from: DarkStaR on July 13, 2010, 04:35:45 PM
Have you tried fitting the PC anyway yet?
...
Quote from: Monsterlover on July 13, 2010, 04:48:33 PM
Really?

I know for sure the 99 900ecu cannot be replaced by a 2000 900 ecu, the pinouts are different and while the bike will crank, it won't fire up.

I'll try it anyway.

Wait a minute, I'm talking about the PC = Power Commander!?!?!

Monsterlover

#4
July 13, 2010, 05:10:20 PM
Me too ;)
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

DarkStaR

#5
July 13, 2010, 05:11:49 PM
On those years, does the PC just connect to the injectors, or to the main harness?

Monsterlover

#6
July 13, 2010, 05:33:11 PM
It plugs in between the ecu and the ecu plug on the harness
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

ducpainter

#7
July 13, 2010, 05:46:02 PM
Quote from: Monsterlover on July 13, 2010, 05:33:11 PM
It plugs in between the ecu and the ecu plug on the harness
What's to lose by plugging it in and setting it to waaaaay too rich and seeing if the thing runs....

waaaaay too rich?
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Monsterlover

#8
July 13, 2010, 05:47:34 PM
like turn the fuel up to 11?
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

DarkStaR

#9
July 13, 2010, 05:49:52 PM
Quote from: Monsterlover on July 13, 2010, 05:33:11 PM
It plugs in between the ecu and the ecu plug on the harness

Ew, I got nothing then.  All the ones I've worked with just plugged into the injectors and the TPS.

As you were...

ducpainter

#10
July 13, 2010, 05:50:04 PM
Quote from: Monsterlover on July 13, 2010, 05:47:34 PM
like turn the fuel up to 11?
sumpin' like that. ;)
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


DarkStaR

#11
July 13, 2010, 05:54:18 PM
Sorry, had to:

ducpainter

#12
July 13, 2010, 05:56:37 PM
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Monsterlover

#13
July 13, 2010, 06:32:16 PM
;D [thumbsup]
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**
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