Error Code 14

[blakmambo]

That code is for the Intake Pressure Sensor. It is mounted in the area of the left end of the FI rail. You will have to raise the gas tank and prop it to see the sensor. If it is defective or unplugged your FJR will use a ‘look-up’ table and continue run just fine. While troubleshooting my bike I rode for a week or two with the sensor unplugged without any issues.
Go to the online Yamaha parts catalog, enter your bike year & make, then click on Intake 2; you are looking for item #18.

The Intake Pressure Sensor is the exact same as the Ambient Pressure Sensor under the seat and under the seat attachment cross bar. It is possible to directly swap these two sensors, but the sensor under the seat is a major PITA to get at the screws.

The sensor in question is used to measure the pressure (vacuum) in the intake and is used as one of the inputs used to determine the correct FI shot. Since your error code is movement related and the sensor is held in place by two screws I would suspect that you are chasing a harness problem and not a sensor problem.

Folks:

Had this "14" error code on my 09er this morning, or rather on restart from gas station, the bike kind of "zzz----zzz---zzz--urrp----varroomed" to a start . . . and then as I was pulling out onto PCH in sunny Malibu I looked down to see the glaring light, never had seen that light before . . . WTF . . . "battery going dead"??? "no oil in engine"??? all the various catastrophic scenarios that the "check engine" light might indicate . . . phone the tow truck, now to save on total engine reconstruction???? Executive decision to "ride it til she fails and then make another decision . . ." . . . idled OK at stop lights, but on accel away it didn't seem too frisky . . . "reality or imagination??" . . . temp gauge showed "normal" temps . . . traffic wasn't too bad so riding 40mph in a "45mph" zone didn't result in being run over and left for dead . . . should I "take it easy" or "hammer time"?? Made it home OK . . . rolled the bike to the small area of concrete slab used for bike pre-launch checks . . . turned the key looking to check my mileage and instead of "22, 555" . . . it said "14" . . . ??? cpu's mind has been blown and has forgotten the miles it has supplied "management" for? Hmm, must be an error code????

Reading this thread it appears that it is "non-catastrophic" and possibly I could ride it this way until the 25K valve check? It did seem to have some influence on the smoothness of acceleration . . . here at more or less "sea level" and the light didn't come on in the SM mountains of what might be 1K foot elevation? Only after re-start, bike was "warm" . . . no visits to triple digits . . . just sat at a redlight for what might have been almost 5 mins before pulling into the gas station . . . .

One reason for this post is that the quoted section above the poster states "You are looking for #18" . . . which might have been the case at the time? Today, that number is for the "Throttle sensor assy" . . . and #17 is showing for the "sensor, pressure" . . . which seems like is the item that error 14 is referring to?? Not sure if it's worth the time to dig down there and sniff around . . . or forgetta bout it until the next service??? Bike does sit outside, covered . . . and a few thousand back my then mechanic rifled through the throttle area to release the throttle spring, and a few hoses and such were disconnected . . . but nothing such as the glaring red light of doom until this morning . . . . This is my first EFI bike, not used to these "non-verbal light flashes" . . . didn't know at the time that I could have turned it off and checked for the code (wouldn't have known what "14" would have meant) . . . thought that demise was imminent and headed for the home compound to do a post-ride "analysis and reflection" . . . .

 

[RossKean]

Try this...

https://www.fjrforum.com/forum//index.php/topic/170314-fault-code-14-gen-ii-solved/?hl=sensor

 

[blakmambo]

Try this...
https://www.fjrforum.com/forum//index.php/topic/170314-fault-code-14-gen-ii-solved/?hl=sensor

@RossK:

Alrighty, thanks for that link . . . read through the posts there, didn't check the various links there, but got the gist of it . . . "goo in #12" is causing error code "14" . . . . So far it doesn't seem to be causing too much issue with drive-ability, hard to recall from the ride back whether there was "a problem" or "gusty side winds" were interfering with air intake (as it does on my carbed bike)? Be great if cleaning a section of hose would be the "solution" rather than the sensor, etc.

 

[RossKean]

The "earwax" in the hose was my problem as well as for a few others. It could still be something else but 20 minutes to lift the tank, find the hose and clean it out is pretty painless. As mentioned, the rest of the associated tubing was clean - just the short piece from the sensor was gummed up.

 

[blakmambo]

@RossKean:

Thanks again for the follow-up . . . well, it would take me 20 mins just to think about lifting the tank . . . . : - 0

But, from taking a quick look at the fiche it appears that there is a bend just below the sensor?? which might explain the why of it, why is this goo gathering here, etc . . . . Is that the hose you are referring to?? In the fiche it is split away from the sensor, but seems like that is the #12 you referred to . . . ??

My general question is on how long this will be "sub-clinical" and just show the code without causing the stall/run rough you were experiencing in your thread? Radical difference in miles, as mine is only 22.5K . . . but yours was 163K??

Or, does the cpu management sort of "mess" with how the bike runs just to get our attention, but it isn't "super-critical" to riding, no impending doom of instant karmic level disaster . . . but, just wheeze along until hose is inspected/cleaned??

 

[RossKean]

Mine went from working fine to not working at all well in very little time.

The problem on mine (and others) was just the one short hose that goes from the sensor to the first plastic fitting although I took everything apart and cleaned the hoses and fittings. As I mentioned, yours could be a different problem.

Lifting the tank is easy, even if you haven't done it before.

If you are using Chrome and you have the "Photobucket Fix Extension" you can go to the following post for a great post on the subject of getting under the tank. (Without the "Fix", and suitable browser, the Photobucket links won't work)

https://www.fjrforum.com/forum//index.php/topic/18322-photos-of-how-to-get-under-the-tank/?hl="under+the+tank"

Photobucket Fix

https://www.fjrforum.com/forum//index.php/topic/172794-photobucket-fix-for-chrome-and-vivaldi-web-browsers-and-now-firefox/?hl=++photobucket+++extension

 

[blakmambo]

Looks like my attempt to reply by email last night was not successful:

"

@RossK:

Thanks for the links . . . main concern is the relative speed of this problem growing quickly into something that requires a tow. I have been "under the hood" on the FJR and watched my mechanic in the process as well . . . not insurmountable, but also a tad "involved" to get to the innards, with the "t bar" and the heat cowling . . . I haven't made my "hood block" cut to the perfect length to hold the tank up while I dig around in the hoses and wires . . . haven't had to until now."

 

[mcatrophy]

Wooden prop, dowel in the end goes through screw hole.

(Click on image for larger view)



Oh, yes, when you lift the tank, don't forget to slacken the rear mounting nut. Many peops have forgotten this, the bracket bends, then the front screws don't align when the tank is lowered.

 

[blakmambo]

@mcatrophy:

Thanks for the caveat . . . yep, it's all very technical, no matter how "routine" the job . . . multiple fasteners . . . multiple body parts to remove . . . .

Last guy that did the service, or rather the "repair" on the service their "top mechanic" had done, got the "loosen the rear mounting nut" part right, but then "forgot" to retighten same said nut . . . fell off somewhere . . . fortunately the body plastic keeps the bolt from sliding out or perhaps it would have been the tank bouncing down the highway . . . . "O, sorry about that dude, would you like to order a new tank? Prolly take a couple weeks to show up, we can set up a plastic fuel bottle for you while you wait . . . it'll get you home . . . like the HD 'peanut tank' idea . . . gas station to gas station . . . . : - ))))))

 

[FJR Flyer]

And make sure you run something down the vacuum hose. A visual check may not be enough to make the determination. In my case, it looked clear, but when I ran a piece of safety wire with a loop on the end through the hose, a wad of the infamous caramel colored goo came out.

 

[blakmambo]

And make sure you run something down the vacuum hose. A visual check may not be enough to make the determination. In my case, it looked clear, but when I ran a piece of safety wire with a loop on the end through the hose, a wad of the infamous caramel colored goo came out.

@FJRFlyer:

Thanks for that . . . be a few days before I can get to any of it . . . figured a blast of brake cleaner or WD-40 to loosen the innards up . . . I think that taking some care with the implement that gets inserted into a hose might be in order . . . ???

 

[RossKean]

Remove the hose from the sensor and from the plastic fitting. DO NOT get any cleaner or solvent into the sensor - it will ruin it as will poking around inside it.

I would not use WD40 because of the residue it would leave. Q-tip and possibly a spritz of carb cleaner but let it dry thoroughly before reconnecting to the sensor.

 

[blakmambo]

Hey gents:

2.5 hours later . . . tank removed . . . I believe I found my way to the sensor, black plastic body attached with two 8mm bolts with a vacuum hose attached to the bottom and the other end of the hose attached to a coupled fitting???

Pulled the hose out, pushed a coat hangar wire through and nothing came out, sprayed some cleaner into it with a plastic extender on it and pushed it in . . . then blew compressed air through it . . . nothing came out at any time . . . except the air blew through . . . without seeming to find too much resistance.

With the sensor disconnected I turned the key on and it showed error 14, then 13, then back to 14 . . . I reassembled the sensor and hose, bolted it down, reattached the various air hoses . . . turning the key on still shows error 14 . . . ??? Is there anything else to check before I put the whole she-bang back together?? The tank is still removed, so possibly everything needs to be back together before the codes will clear?

Or something else to do to clear the error, before putting every single bolt/screw/rivet back into place? Kind of a god-awful piece to work on . . . if there is something else to try before flipping the tank back together that would be great to know about . . . ???

 

[RossKean]

It is possible that you have a defective sensor...

That or a hose off, pinched or leaking somewhere. Other than that, I can't help. Sometimes hard to figure out a problem by a description or even a photo. Sometimes, you just have to see.

Good luck.

 

[blakmambo]

It is possible that you have a defective sensor...
That or a hose off, pinched or leaking somewhere. Other than that, I can't help. Sometimes hard to figure out a problem by a description or even a photo. Sometimes, you just have to see.

Good luck.

@RK:

Indeed, diagnosing problems is hard to do remotely . . . I did take photos, and for the most part everything looks "OK" . . . . I thin' I'm just going to bolt it up and . . . backburner it for now . . . . Don't know how to do "diagnostic mode" operations . . . it's all very technical under the hood.

 

[blakmambo]

Later that same day:

So, the good news . . . after doing my procedure on the hose R&R and seemingly finding nothing-- I buttoned it back up . . . then went for a 1.5 hr bike ride . . . when I came back I checked the last few fasteners . . . turned the key . . . I think the error code was still there . . . started her up . . . which, worked . . . and looked over to see no glaring engine light . . . no error code!!! I must have some "innate" ability . . . lay your hands upon the television sets my friends and feel the power of the Lord coursing through your motorcycles!!! : - )))

I think the secret is that I really cinched the tank bolt nut real good . . . seems to get loose pretty easily . . . yeah, that's the secret. Figuring that we might be in the remit/recur phase of the problem . . . but, for now, she's a-fixed!!!!

 

[FJR Flyer]

Probably a good idea to go into the diagnostic mode and clear the old code out and hope it doesn't return.