anyone know how to reset the fuel system on an 03 636 after you remove a PCIII and full system exhaust? i put mine back to stock header and cut short slip on and since my bike is running so rich its turning my pipe yellowish. everything is hooked up right. i unhooked the battery for an hour then put it back in, figured that would do it but its still puffin smoke a bit and runs shitty on low end. once your up in the Rs it screams and runs good but you can really tell its rich on the low end. any ideas

 

zx10 cdi should fix it

 

Did you reload the stock map onto the Power Commander before uninstalling it or did you just unplug the PCIII?

 

Just unplugged the PCIII and ever since my bike has been running like ****, always seems really rich, probably because the ecu still has the PCIII mapping in it, is there anything i can do besides replace my ecu with a stock one

 

You can leave a PC3 unplugged for 3 years and it wont lose the map thats in it. Go to powercommander.com , download thier software and try a different map. Its real easy to do

 

Doesnt your bike go back to stock once you remove a pc3 ... The map you had loaded in your pc3 woulnt stay in the bike once you remove it from the bike

 

^^^would like to know as well

 

Once you remove a pc from a bike the bike goes back to stock

 

The power commander just takes the stock map that is in the ecu and tells the engine what changes you have made.
The ecu never gets changed. It is like putting a bully dog tuner on a desel. You said that you cut your stock pipe?? Any changes in the exhaust or intake from what the bike had from factory will have a effect on the bike.

 

+1

The map isn't loaded to your ECU, its loaded to your power commander


in fact, I'm not even sure its really a 'map', all a power commander does is MODIFY the stock fuel curve..


thats why you can put a power commander on a bike, and go ride in the mountains, then go ride down by the sea, because the bikes stock ECU compensates for the elevation change, and the power commander just adds fuel where needed

 

well then explain this. my bike had a full system arata with an aftermarket air filter on it and PCIII when i got it, i set it up for stunting so i removed the full system and PCIII and put on a completely stock system with no PCIII and my bike has smoked and ran like **** ever since. i had to almost completely gut the stock pipe to get it to even run decent and it still runs rich as hell i've had a lot of people tell me as well. So the only thing i could think of is the PCIII changed something in my ECU and it still thinks it has a completely unrestricted race system still on the bike. There really is no other thing that it could be. So...

 

How am i supposed to download thier software when i dont have the power commander on the bike or even have it anymore.

 

Do you have the power commander still?

If so, hook it back up, ride the bike right after, does it run perfect?

take it RIGHT BACK OFF, same day, go out and ride it, run like **** again?

If so, then idk... If you put hte power commander back on and it still runs like **** though, then maybe you have a problem


Hell maybe the power commander was a crutch for hwatever was wrong.. Maybe the bike has bad plugs, maybe a sensor is bad, maybe a vacum hose is off, and maybe when the power commander is on it 'band-aids' the problem


I'm not 100% sure, I'm really not completely sure at all, I'm just ASSUMING **** here

but from my basic understanding of how a power commander works, it doesn't actually modify the ECU it self..

The fact your bike smokes and **** makes me think something is wrong. Because I had a power commander on my bike when I purchased it and it came with a K&N filter and a D&D pipe.. I removed the power commander ran fine, I went back to a stock pipe with taped air box ran fine, I've even ran open header and ran fine..

Smoking indicates something is wrong IMO.. Unless your power commander made your bike run SUPER RICH, and if thats the case, then when the power commander was on there it was running too rich even with an exhaust IMO.



/been drinkin alcohol for about 5 hours now so gimme a break

 

LOL, I wish i knew a perfect answer. When i first got my bike and it had the full system on it it ran like a top, fast as **** no rich or lean absolutely perfect IMO, and keep in mind that was a full system with K&N filter. If it was mapped for that and is still mapped that way in the ECU then simply going back to a stock header would change it drastically say nothing about a stock pipe thats extremely restrictive.

Everyone i talk to that stunts slow say stock pipes are good for back pressure for down low power that you actually need to lift it easy from almost a dead stop. Mine i have to literally hit it pretty damn hard in order to get it to jump up to BP, its rather easy to do and i have gotten used to it but i can't in anyway get it to come up in a HC or a Spreader from a dead stop it either wont lift up or i am hitting it to hard and the back tire just spins. It's extremely annoying.

I do not have the PCIII anymore to check it out but a buddy of mine has one on his 636 i would like to throw his on my bike and map it back to stock settings or choose a pretty restrictive slip on mapping as my stock pipe is gutted quite a bit

Then i can just remove it from mine and throw it back in his and map his the way he had it setup but i dont have a laptop to be able to change it up, if i did have access to one this would be the first thing i would do, then i would have an answer for everyone whos curious

 

Read the PC web site or hell call em! Once you remove a PC from a bike the bike goes back to stock. Need to start searching for another reason why your bike is running like ****