How common is throttle position failure on 919 - Wrist Twisters
 
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post #1 of 28 Old 03-07-2012, 04:42 PM Thread Starter
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How common is throttle position failure on 919

This morning while riding to work, my FI lit up solid and she fell on her face. There would be no throttle response for a 5-10 seconds, then I would get 5-10 seconds of it reacting fine.
I pull over and shut it off, restart immediately and FI light started flashing 8 times, pause, flashing 8 times, pause, over and over.

I run it in the above fashion till the next highway exit, shut it off for about 20 seconds while I wait for the light to turn green, then she runs properly the rest of the way to work.

I check the connection at the TP sensor and there is no moisture, corrosion or coking. No water in connector either.

Should I just throw a TP sensor on it, or is there another issue which typically causes this?

Thanks in advance,
-EDFD

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Used to be Red, now it's Green. Open for name suggestions.
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post #2 of 28 Old 03-07-2012, 04:46 PM
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Hope it's something else, TPS is part of the complete throttle body assembly.


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post #3 of 28 Old 03-07-2012, 04:56 PM
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Quote:
Originally Posted by voodooridr View Post
Hope it's something else, TPS is part of the complete throttle body assembly.
+1!

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post #4 of 28 Old 03-07-2012, 05:01 PM
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highly doubt its the tps. look in the book and see what flashing code means.

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post #5 of 28 Old 03-07-2012, 05:03 PM
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you can test it, you search around I posted a thread about replacing it and you can use the same procedure to check it out...

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post #6 of 28 Old 03-07-2012, 05:06 PM Thread Starter
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Quote:
Originally Posted by rmb

+1!
Are you sure this isn't it here?


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post #7 of 28 Old 03-07-2012, 05:09 PM
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8 Flashes = TPS related.
Duff Sensor
Duff Wire (break or short in wiring to and fro)
Duff connection(s) (loose or resistant)
See page 5-18 re how to do some checks.
Dash flash and volt meter based checks.
Any recent work done on it ?
No falling over on the right hand side ?

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post #8 of 28 Old 03-07-2012, 05:10 PM
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Quote:
Originally Posted by Jeef View Post
you can test it, you search around I posted a thread about replacing it and you can use the same procedure to check it out...
Jeef, are you the one that grafted on one from a Honda car ?

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post #9 of 28 Old 03-07-2012, 05:38 PM
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Quote:
Originally Posted by EatDirtFartDust View Post
Are you sure this isn't it here?


Attachment 19558
Yes that's it but you can't buy just the TPS. You have to buy the whole throttle body.



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post #10 of 28 Old 03-07-2012, 06:13 PM
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damn that sucks.....

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post #11 of 28 Old 03-07-2012, 06:21 PM
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Quote:
Originally Posted by schrock86 View Post
Yes that's it but you can't buy just the TPS. You have to buy the whole throttle body.
I hope theres an interchange or a (properly priced) aftermarket loop hole to this. That would be pretty insane. Not that I'm suprised in the slighest, but I thought Honda was a little less douchy about this kind of stuff.

edit: apparently that was only because I've never owned a honda car, lol. http://www.phantasmusa.com/omnitpsom.html the american influence is shining through there eh.. my ford is started to look more appealing all the sudden..

thats so crazy, its a common wear item.. they might work forever but they could be as choppy as that knob on your old stereo. I'm sending anger to Honda on your behalf.

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post #12 of 28 Old 03-07-2012, 07:05 PM Thread Starter
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Quote:
Originally Posted by dr1

I hope theres an interchange or a (properly priced) aftermarket loop hole to this. That would be pretty insane. Not that I'm suprised in the slighest, but I thought Honda was a little less douchy about this kind of stuff.
I wouldn't mind buying a whole throttle body, but seeing as how the bike has less than 10k, yeah, that would suck.
I'm going to give it some time and see if it acts up again.
I work at a car dealership and there are plenty of times something like this happens, but after removing and reinserting the electrical connector, of never happens again.

We have a Honda car dealer next door, so the next step would be to get a part number on the to sensor only and checking cross reference.

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post #13 of 28 Old 03-07-2012, 07:30 PM
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id bet its some wiring problem.... never heard of a TPS going bad.

and FYI that honda car TPS might look the same... but if im not mistaken its like 90* off or something.... i think someone adapted it to work on their TBODY with a broken sensor on here somewhere.

Oh and.... look at the street number for that parts place.... 919 baby!

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post #14 of 28 Old 03-07-2012, 07:55 PM
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Quote:
Originally Posted by dr1 View Post
I hope theres an interchange or a (properly priced) aftermarket loop hole to this. That would be pretty insane. Not that I'm suprised in the slighest, but I thought Honda was a little less douchy about this kind of stuff.

edit: apparently that was only because I've never owned a honda car, lol. Omni Power (TPS-OM) Replacement Throttle Position Sensor the american influence is shining through there eh.. my ford is started to look more appealing all the sudden..

thats so crazy, its a common wear item.. they might work forever but they could be as choppy as that knob on your old stereo. I'm sending anger to Honda on your behalf.
Don't worry. There is literally millions of miles of 919 history on this site and I don't know that I've scene a TPS failure on one. As noted above, there was someone who managed to install a car one, but I believe he physically broke the one on the bike. It didn't fail.

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post #15 of 28 Old 03-07-2012, 08:43 PM
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Well, yeah, I hear yah.. noone has the kind of mileage that would really require a TPS replacement. But as you pointed out, things break for other reasons. The quote for the throttle body assembly new is $1,500, thats a long ways away from a $50 sensor. Sometimes parts get bundled with other parts and you end up paying 2x, 3x, 4x, 5x.. and thats annoying enough. But 30x?? Oh yeah I'd definately be jerry rigging one onto my bike as well, but I'd also be looking outside Honda for my next purchase for sure, because that BS really boils my blood.

You are right though, your not likely going to need one, probably just a glitch. But if you do need one I'll help you track down the guy responsible for designing this crap to kick his sh*t in. Lol.

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post #16 of 28 Old 03-07-2012, 08:47 PM
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if im not mistaken.... honda doesnt make the throttle boddies.... probably keihin

either way... if it is infact a bad TPS... you can "easily" get one of honda's car ones to work.

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post #17 of 28 Old 03-07-2012, 09:30 PM
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There's a bunch of car ones on Ebay

Better than $1500

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post #18 of 28 Old 03-07-2012, 11:12 PM
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Quote:
Originally Posted by EatDirtFartDust View Post
We have a Honda car dealer next door, so the next step would be to get a part number on the to sensor only and checking cross reference.
If we could get a part number for OUR TPS that would be fantastic...no having to jury-rig one like Jeef did...Jeef did a fantastic job, but the right part would be best!

EDFD, let us all know what you're able to find out!





.

Well, fire the engines! Spur this iron space-pony on!

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post #19 of 28 Old 03-08-2012, 06:02 AM
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yeah, it works and still is on. I know someone on here found a cheap (30 bucks) throttle body on ebay too, I would go that route before the route i did if I could find it.

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post #20 of 28 Old 03-24-2012, 04:17 PM Thread Starter
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So it's definitely the sensor and not the wiring.
Guess I'll start looking for a suitable replacement.
Next step is to take the original into the Honda dealer next door. I'll do that when I go back to work Tuesday.

I know my way around a soldering iron, I'm not against buying a car one and swapping the electronics from the new housing to the original.

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post #21 of 28 Old 04-14-2012, 01:08 PM Thread Starter
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So I realized, that the sensor is actually riveted to the throttle body (super dick move, Honda).

And since the bike is still rideable, I didn't want to drill it out until I had a suitable replacement.

I found this one on Ebay:
eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices

It's off of a 2000 CBR929, but it's the only one I can find that appears to have the same mounting frame.

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post #22 of 28 Old 04-14-2012, 01:23 PM
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I hope it works out! Have you compared wiring diagrams to see if it's wired the same?

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post #23 of 28 Old 04-14-2012, 05:54 PM
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EDFD, take a look at my post here. I had problems with my TPS when I crashed and had to replace it. It's a relatively easy fix if you have the replacement TPS and the right tools.

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post #24 of 28 Old 04-14-2012, 06:14 PM
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Quote:
Originally Posted by EatDirtFartDust View Post
So I realized, that the sensor is actually riveted to the throttle body (super dick move, Honda).

They are screws, they only look like rivets. seriously.

Well, fire the engines! Spur this iron space-pony on!

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post #25 of 28 Old 04-15-2012, 09:44 AM Thread Starter
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Quote:
Originally Posted by The Shadow

They are screws, they only look like rivets. seriously.
Really? How do they come off?

Edit: read your post, now I get it, thanks.

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post #26 of 28 Old 04-15-2012, 11:41 AM
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...If you read Jeef's thread about changing the TPS, he describes it there. As I recall, he cut a slot for a screwdriver into the "rivet" heads to unscrew them.

Well, fire the engines! Spur this iron space-pony on!

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post #27 of 28 Old 04-15-2012, 05:48 PM
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yup... you actually don't even have to cut a slot, just a few good taps at an angle with a screwdriver and mallet in the right direction will free it, then replace it with proper screws

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post #28 of 28 Old 04-27-2012, 05:42 PM Thread Starter
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Do you guys remember what size threads?

Since I got the new sensor in the mail my bikes been running perfect with no warning light but it was warm the whole time and now since we've had a cold snap the last few days it started acting up again.

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