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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through July 30, 2008 » The 100% no CEL solenoid eliminator. cost: FREE « Previous Next »

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Pizzaboy
Posted on Sunday, July 27, 2008 - 03:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

ok i finally gave in on doing the solenoid eliminator mod to my 1125. my plan was to just pulling the plug, and zip tie the throttle linkage solid.

this was my first time removing the lower airbox area to see the throttle bodies completely. at this point it was obvious that there is a way that will 100% guarantee not setting off the check engine light (honestly, i see it more than enough thanks to the front O2 sensor error on EVERY day the weather is over 95 degrees).

MY version of the eliminator involves keeping the solenoid plugged in, and removing just the cable. i unscrewed the jam nuts and completely removed the 1.5 foot black cable from the bike and called it good - after securing the linkage of course!

this way the solenoid is still active and can move back and forth all it wants. its giving feedback to the computer and it thinks its working... its just not controlling anything anymore - and no longer interfering with the throttle butterflies!

this mod cost me exactly one zip tie, and 20 minutes.

the bike definitely has a noticeable difference in low RPM response and was well worth me accidentally breaking off two of the airbox securing tabs in my carelessness.... oh and NO CHECK ENGINE LIGHT will ever come on because of this version of the mod since the solenoid is still technically doing its thing!

i sure do love FREE mods!

SO.... when you are ready to do this mod, after reading the other rediculously long threads on the solenoid eliminator, dont buy the buell part or the markle engineering part... or remove the solenoid completely! just do it THIS way and call it a day. pat yourself on the back for using the no-drawback method of free throttle response!

(Message edited by pizzaboy on July 27, 2008)

(Message edited by pizzaboy on July 27, 2008)
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Zack3g
Posted on Sunday, July 27, 2008 - 07:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

interesting. this will be my monday day off project.

among other things....
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Slypiranna
Posted on Sunday, July 27, 2008 - 08:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

This has been done many times. See archives.

Under certain conditions, you will get a CEL...

EVEN with a resistor added this happens. It may take a long while but it does happen.

The ECU looks at the TPS feedback to verify the solenoids operation. If it doesn't "see" the TPS change it reports a CEL.

The CEL will self clear upon restart with no other ill affects.

Repeat, you will still get a CEL unless you buy the race ecu and turn the active intake system OFF. That is the only method currently known to completely keep the CEL clear at all times concerning this subject.
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Fresnobuell
Posted on Sunday, July 27, 2008 - 12:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any CEL difference between removing the cable and the whole damn unit itself?
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Slypiranna
Posted on Sunday, July 27, 2008 - 12:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

No.

When the ecu powers up this momentary circuit it is looking for the tps to respond.

No respond by TPS = CEL
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Xb9
Posted on Sunday, July 27, 2008 - 05:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

+1 what Slypiranna says.

I have verified this CEL at a Mid-Ohio trackday after many street miles without it setting. It's just a code - let it set and don't worry about it - It effects nothing.
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Pizzaboy
Posted on Sunday, July 27, 2008 - 08:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

hmm the difference i noticed was...

turn it on once- no CEL, start it with the plug disconnected makes a CEL right off the bat. turned it off. turned it on no CEL. fire it up - CEL AGAIN.
off. on. no CEL. fired it up 3rd time- ANOTHER CEL!!

plugged it back in... NO CEL on initial fire up


all smiles.
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Adoogie3
Posted on Sunday, July 27, 2008 - 08:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I did mine yesterday and rode over 100 miles in two days and have seen any cels just zip tied it and disconnected the cable .HAPPY TORQUEING at low rpms.
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Bigblock
Posted on Sunday, July 27, 2008 - 09:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

mine only shows a code in diagnostic mode, it doesn't seem to put it up on the
"run" screen.
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Ccryder
Posted on Sunday, July 27, 2008 - 09:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That is the only time it will show a code, in the diagnostic mode.
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