Need help with juice box problems

[412Spyder]

i been having similar problem. spyder hesitating or cutting off when i roll on throttle from standing still. it was lack of fuel. when you get more air in and air out you need more fuel.
i have race air flow, two bros with power commander and i been screwing around with power commander and was just running way way lean.
i burned more gas but performance was worse.
i got a good map from dynojet and it is running super and the symptom is gone.

doesn't juicebox have setting to add more fuel on lower end of rpm? and do get the o2 sensor from evo.
before i had power commander, i could not run race air system, and leo vince pipe without the o2 sensor without getting massive backfiring due to leaness.
dynojet's map had 8-15 % more fuel at the lower end. more fuel at 0% throttle was there to eliminate the back firing at decel.

Sorry about the delay on response to this.... ive been so fed up with my bike i forgot a had it the last couple days lol. As of right now the dealer took off the kewlmetal intake and put the stock systemback on, he said its running alot better but was still cutting out from a standstill, so he took of the juicebox and is going to try a test ride tommorow.... i dont get these problems at all... up until i got the purge vavle temporarly fixed 2 weeks ago i never had it cut out on me when pulling out (until it got over 85 out and the sputtering all started ) even with my two bros dual, jb and kewl metal performance intake... im hoping they figure this out soon... my bikes been in the shop since june 8th and i miss it dearly. as of right now its looking like they will be taking the whole bike back to stock and fixing it from that so that everything is how it should be. ill keep you guys updated one what the final problem is...

[412Spyder]

UPDATE: I got the bike back. They had to replace a coil and recalibrate the fuel injection system. Since saturday i have rode 250 miles and the bike runs pretty good... the idle is still erratic jumping anywhere from 1250 to 1500, and sometimes hitting as low as 1100...they said this was from the exhaust being on. the dealer said during his call with BRP they figured out that my juicebox is bad and thats what fried the coil. also in the mist of trying to troubleshoot they changed my ecm... not sure if they kept that in there or if they used it for testing. As of now I'm going to try and get the juicebox replaced... and let it sit on my shelf next to the kewl metal intake... who knows what happened to the idle but the good thing is i can still drive it and they say it wont hurt it. I was cleaning my exhaust today and i noticed that the o2 sensor wasn't screwed in the whole way it has about 1/16 - 1/8 of room left theres just enough room that i can wiggle the 2 washer's thought that it may be leaking but i couldn't feel any air coming out from around. I'm not sure if that couldn't mess up my idle or not but as of now I'm throwing in the towel leaving the bike as it... the idle can get looked at during my next oil change. I wanted to thank everyone for the help i guess i learned my spyder just isnt cut out for this stuff lol.

[Campverdefela]

UPDATE: I got the bike back. They had to replace a coil and recalibrate the fuel injection system. Since saturday i have rode 250 miles and the bike runs pretty good... the idle is still erratic jumping anywhere from 1250 to 1500, and sometimes hitting as low as 1100...they said this was from the exhaust being on. the dealer said during his call with BRP they figured out that my juicebox is bad and thats what fried the coil. also in the mist of trying to troubleshoot they changed my ecm... not sure if they kept that in there or if they used it for testing. As of now I'm going to try and get the juicebox replaced... and let it sit on my shelf next to the kewl metal intake... who knows what happened to the idle but the good thing is i can still drive it and they say it wont hurt it. I was cleaning my exhaust today and i noticed that the o2 sensor wasn't screwed in the whole way it has about 1/16 - 1/8 of room left theres just enough room that i can wiggle the 2 washer's thought that it may be leaking but i couldn't feel any air coming out from around. I'm not sure if that couldn't mess up my idle or not but as of now I'm throwing in the towel leaving the bike as it... the idle can get looked at during my next oil change. I wanted to thank everyone for the help i guess i learned my spyder just isnt cut out for this stuff lol.

Hey, if the dealer missed that loose 02 sensor they may have missed something else. You might want to go over the engine looking for loose connections, hoses, exhaust, etc. I once had a running issue and found out the problem to be one of the vacuum lines had a small crack and was sucking in air, the dealer had missed this.

[412Spyder]

Hey, if the dealer missed that loose 02 sensor they may have missed something else. You might want to go over the engine looking for loose connections, hoses, exhaust, ect. I once had a running issue and found out the problem to be one of the vacuum lines had a small crack and was sucking in air, the dealer had missed this.

If i knew where all the vacuum lines are i would, but as of now I'im not sure. I'm going to ride it for a while and see how it is. I have no ambition to try and wrestle with thing anymore haha. I checked to see if maybe my y gaskets were leaking because the right had an immense amount of heat but i didn't feel any with my hand when i first started it up. i checked these after i saw the 02 sensor was loose. i know the bike had a full compression and leak test done so the next time i take it back i will have them tighten the o2 sensor. I'm just glad to have my bike back.

[ataDude]

..... the dealer said during his call with BRP they figured out that my juicebox is bad and thats what fried the coil...

To the best of my knowledge, the JB does not interface with the ignition coils AT ALL.

It intercepts the fuel injection pulses before it gets to the injectors and modifies the pulse duration to make the fuel richer by whatever amount you set (can't do leaner). That's all.

.

[412Spyder]

To the best of my knowledge, the JB does not interface with the ignition coils AT ALL.

It intercepts the fuel injection pulses before it gets to the injectors and modifies the pulse duration to make the fuel richer by whatever amount you set (can't do leaner). That's all.

.

Thats what i was understanding as well..... i really have no idea what the story is with this whole ordeal and i have thrown in the towel haha

[Campverdefela]

If i knew where all the vacuum lines are i would, but as of now I'im not sure. I'm going to ride it for a while and see how it is. I have no ambition to try and wrestle with thing anymore haha. I checked to see if maybe my y gaskets were leaking because the right had an immense amount of heat but i didn't feel any with my hand when i first started it up. i checked these after i saw the 02 sensor was loose. i know the bike had a full compression and leak test done so the next time i take it back i will have them tighten the o2 sensor. I'm just glad to have my bike back.

Just use a cresent wrench to tighten the 02 sensor its easy. Why wait for the dealer. I do understand your frustration.

[412Spyder]

Just use a cresent wrench to tighten the 02 sensor its easy. Why wait for the dealer. I do understand your frustration.

i dont have one big enough gotta go get one..... my frustration is through this whole ordeal the idle was always constant until they cleaned the purge valve and put it back in as a temporary fix for me to go to a bike show that was in town... and then being told it was from my exhuast when my exhuast was on for a month before it was to the shop and in that month i rode a total of 1000 miles

[Campverdefela]

i dont have one big enough gotta go get one..... my frustration is through this whole ordeal the idle was always constant until they cleaned the purge valve and put it back in as a temporary fix for me to go to a bike show that was in town... and then being told it was from my exhuast when my exhuast was on for a month before it was to the shop and in that month i rode a total of 1000 miles

Your common sense is telling you that it couldn't be the exhaust and I agree. When its convenient you may want to take it to different dealer if possible.

[412Spyder]

Your common sense is telling you that it couldn't be the exhaust and I agree. When its convenient you may want to take it to different dealer if possible.

that was my next step... im going to ride it for a bit as its been in the shop for 6 weeks. the idle is the only part that is messed up... A local shop that sells can am has a bike night every thursday its a pretty big deal... going to talk to them tommorow about getting this all straightened out. btw i checked all the lines i could see and they all look to be tight not sure about any crack i couldnt see any that were visible. Thanks for the input though

[Campverdefela]

that was my next step... im going to ride it for a bit as its been in the shop for 6 weeks. the idle is the only part that is messed up... A local shop that sells can am has a bike night every thursday its a pretty big deal... going to talk to them tommorow about getting this all straightened out. btw i checked all the lines i could see and they all look to be tight not sure about any crack i couldnt see any that were visible. Thanks for the input though

I'm an ex Pittsburgher, pm me sometimes and will talk about what I went thru with my mods to get to the point I'm at with the Spyder. Maybe I can help.

[412Spyder]

Sounds good thank you.

[bone crusher]

I am dialing back my JB numbers a lot since the second update. As Doc commented here or on another thread, the second update 'corrected' how lean the bike runs...this means that we don't have to have the JB cranked up so high to get fuel in as it looks like the update helped in this area.

I think I'm close with where I need to be...still a bit of popping when I hit the throttle in 4th gear after coasting...doesn't seem to be much of an issue in other gears...

I hope I'm right when I decrease settings two and four to see if this helps...I have them set around 2 and 2.5 (I think), and I can go lower...I should be out for a ride this weekend, so if anyone is interested, I can post how the bike runs...