[pancakecircus]

a friend of mine rides a 2002 road star warrior and ran across this:

http://www.rswarrior.com/forums/21-how-tos-general-maintenance-tips/133535-ecu-adjust-pics.html

has anyone tried this on our bikes or are they different?

 

[mikoloe]

There is a software on the internet you can use with your laptop to connect direct and make the changes.. You just have to find it.

 

[toby]

I assume this can be done on these bikes that can access the diagnostic mode via the digital read out pannal as posted by I think, Dejablu110, on another forum? If it IS possible to adjust the stock ECM/ECU in this manner then that would be an indication that dealers and after market sales are full **** lying to us and just ripping us of?:tsk:

Accessing the diagnostic mode.
So if this info is correct you can not only access a diagnostic mode via memory chip and now what's wrong if anything via readout on the digital disply but fix things fore example, by hooking up a laptop and adjust the air fuel ratio on the stock module ????

1. Press and hold the Reset button
2. Turn ignition to ON and keep holding the Reset until "diag" appears on the LCD (about 5 seconds).
3. Now press and hold Reset and Select buttons at the same time and hold for about 5 seconds until you enter the diagnostics list.
4. Now you can press Select to move up, or Reset to move back through all available code. Among them are throttle position sensor, temperature etc.

01 : Throttle position - must be from 15-17 (closed) to 97-100 (opened)
02 : Atmospheric pressure given in mmHg (normal is 760 - average weather)
03 : Differential pressure between air and intake pipe
05 : Air intake temperature (in Celcius)
06 : Cooling liquid temperature (in Celcius)
07 : Absolute speed (must be 000 in garage). Check with rear wheel.
08 : Lean angle safety switch control - must be from 0.4-1.4 (upright) to 3.8-4.2 (horizontal). DISMOUT THE SWITCH FOR CHECKING !!!
09 : Battery voltage - must be above 12.0
20 : Side stand switch - displays ON or OFF
21 : Neutral gear switch - displays ON or OFF


Part II : ECU memory check.


60 : EEPROM error code presence - 00 means no default, 01 or 02 means default on corresponding cylinder (blinks if both cylinders).
61 : Error Code memory log - Displays 00 if no error code in memory, displays the Error Code if any (11 to 50). Display changes every two seconds if more than one Error Code in memory, then start again from first.
62 : Displays the number of Error Code in memory. To clear the memory, switch the Engine Run Switch to ON position (no backup).
70 : Check Code number, display from 0 to 255


Part III : Activators - To activate, turn Engine Run switch from OFF to ON - Engine check light is activated too.
30 : Coil 1 is activated 5 times per second.
31 : Coil 2 is activated 5 times per second.
36 : Injector 1 solenoid is activated 5 times per second.
37 : Injector 2 solenoid is activated 5 times per second.
48 : Air duct solenoid is activated 5 times per second.
49 : Air intake solenoid is activated 5 times per second.
50 : Fuel injection relay is activated 5 times per second.
51 : Cooler fan is activated every 5 seconds.
52 : Headlight relay is activated every 5 seconds (2 seconds ON, 3 seconds OFF) - 2003+ model only.


Error Codes
Error Number 11 : Cylinder identification sensor error - DIAG mode (none)
Error Number 12 : Crankshaft posiiton sensor error - DIAG mode (none)
Error Number 13 : Air intake pressure sensor error - DIAG mode 03
Error Number 14 : Air intake duct error - DIAG mode 03
Error Number 15 : Throttle position sensor error - DIAG mode 01
Error Number 19 : Sidestand sensor error - DIAG mode 20
Error Number 20 : Air pressure sensors error - DIAG mode (none)
Error Number 21 : Coolant temperature sensor error - DIAG mode 06
Error Number 22 : Air intake temperature sensor error - DIAG mode 05
Error Number 23 : Ambient air pressure sensor error - DIAG mode 02
Error Number 24 : O2 (lambda) sensor error - DIAG mode (none)
Error Number 30 : The bike went down - DIAG mode 08
Error Number 33 : Coil 1 open circuit - DIAG mode 30
Error Number 34 : Coil 2 open circuit - DIAG mode 31
Error Number 41 : Tilt sensor error - DIAG mode 08
Error Number 42 : Speed sensor error / Neutral sensor in short-circuit - DIAG mode 07-21
Error Number 43 : Battery voltage control error - DIAG mode (none)
Error Number 44 : EEPROM read/write error - DIAG mode 60
Error Number 50 : ECU memory error - DIAG mode (none)
Error Er-1 : ECU link error
Error Er-2 : ECU link error
Error Er-3 : ECU link error
Error Er-4 : ECU link error


Following ERROR codes DO NOT allow engine to run :
11-12-19-30-41-50 and Er-1 to Er-4


Error code 11 allow engine to continue running only if fault appears after engine start.
Image

 

[mikoloe]

Makes you wonder right Toby? I think for the most part there are a lot of believers in the smoke and mirrors.

 

[toby]

Makes you wonder right Toby? I think for the most part there are a lot of believers in the smoke and mirrors.

Ya well this just blows everything out of the water what I came to believed to be true about the non accessible/adjustable stock Electronic/Engine Control Module.:suspicious::suspicious::suspicious:
I'll be poking some of the other gurus on this forum to chime in here:nod: I think some serious research is in demand here.

 

[mikoloe]

Google.

ECU hacking 101


lol

 

[SmokenJoe]

Hhhhmmmmmmmmmmmmmmmm
makes you wonder......................... where does the PCIII hook to?

 

[toby]

Hhhhmmmmmmmmmmmmmmmm
makes you wonder......................... where does the PCIII hook to?

I believe it piggy backs to the ECU? If that's the case do you really need it? This just brings up all kinds of question:dizzy:

 

[toby]

:thumb:http://www.nightrider.com/biketech/motorcycle_efi_upgrades.htm:thumb:

 

[pancakecircus]

Smoke and Mirrors cost money so pay up suckers

I just read this as part of the Strykers sales pitch/review:

Mikuni dual bore, 40mm throttle body fuel injection system with TPS (Throttle Position Sensor) and ISC (Idle Speed Control). This is a "closed loop" system that utilizes an oxygen sensor in the exhaust. The sensor "sniffs" the spent exhaust gases and feeds back info to the ECU which in turn adjusts the fuel/air mixture for maximum power with minimum emissions. The oxygen sensor is located before the mufflers, so the use of slip-on mufflers will not affect this system. Each injector features 12 holes and a dual spray pattern for better fuel atomization and more complete combustion chamber filling.

i can't wait to see how this all pans out

 

[ROADKILL]

All fuel controllers hook up to the ECU...the controllers make adjustments that the ECU can't make......I read what the guy said in the link....something that should catch everyones eye was his disclaimer....about frying the ECU if you do it wrong....also if your bike is still under warranty and you damage the engine or any other component by doing this you will be SOL....he also made a comment about adjusting for altitude...my bike was dynoed at sea level and I've ridden to elevations over 11,000 ft and the bike ran fine no adjustments needed.

 

[toby]

I think to fry the ECU you would have to short it out via spliced wire. The point is and what we need to know is, is it adjustable? If so you should be able to change it via laptop? No backyard mech splicing and grounding the ECU

 

[toby]

Piggy backed units do splice/plug into the stock ECU and send it faels info fooling into changing the AF mixture.

 

[ROADKILL]

I think to fry the ECU you would have to short it out via spliced wire. The point is and what we need to know is, is it adjustable? If so you should be able to change it via laptop? No backyard mech splicing and grounding the ECU

Ok...if the ECU was programable don't you think it would have a usb port and you would have instructions on how and what to do....the fuel controller makes the changes it doesn't send a false signal to the ECU....the controllers have a AF setting, throttle setting, etc

 

[toby]

Can't the diagnostic plug, in the headlight, I think is where it is, be interfaced with a laptop? All info can be accessed they and stems to reason could be altered?

 

[pancakecircus]

Ok...if the ECU was programable don't you think it would have a usb port and you would have instructions on how and what to do

I doubt that they (Yamaha) would put that power in our hands. i think that they would leave that the the service center ($$ in their pockets) and to after market products. No.. i'm not paranoid.. just that.. uh.. everybody's out to get me.

 

[toby]

I doubt that they (Yamaha) would put that power in our hands. i think that they would leave that the the service center ($$ in their pockets) and to after market products. No.. i'm not paranoid.. just that.. uh.. everybody's out to get me.

That's my point, There out to get us. lol.

 

[toby]

Ok...if the ECU was programable don't you think it would have a usb port and you would have instructions on how and what to do....the fuel controller makes the changes it doesn't send a false signal to the ECU....the controllers have a AF setting, throttle setting, etc

Piggy Back Controllers
Piggy Back Controllers connect into the OEM wiring harness to make changes to the fuel map. These devices alter the sensor signal from your engine and “fooling” your factory ECU into providing a different amount of fuel than the real engine conditions warrant. The simplest example of this is that if the factory ECU is told the engine temperature is 30 degrees cooler than it really is, the ECU is going to lengthen the time the fuel injectors are open and provide a richer fuel mixture. It’s actually a simple, but effective way to create new fuel maps. You create an adjusted fuel map in the piggy back system software and it is smart enough to change what the factory ECU senses. The downside of this upgrade is that you never really change the true fuel map that is in the factory ECU.
Piggy Back controllers can also directly extend the time the fuel injectors if they are tapped into the injector wiring. These “pulse extenders” know what RPM engine is running at and the current length of time the fuel injectors are open.:thumb:

This answers some of the question though. The downside of this upgrade is that you never really change the true fuel map that is in the factory ECU.

 

[mikoloe]

 

[toby]

So the question is still there. My thoughts about the Warrior guy changing the numbers via jumper, could only be temporary if he had no way to save the changes??? As soon as he turned his key on again everything goes back to factory presets????