Booster Plug to CEL - Triumph Bobber Forum
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post #1 of 35 (permalink) Old 03-04-2018, 05:49 AM Thread Starter
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Booster Plug to CEL

Lengthened the cable for the sensor and installed the booster plug. CEL came on. Bike seems to run fine. Ran it around the block and it didn't clear.

Went back to factory and the CEL remained on.

I did noticed that when installing it I had partially cockeyed the PCV. I had ran the bike before noticing this. Could that have caused the CEL?

The bike will also run with the factory connection not even connected.

I am pretty certain the lengthening and soldering was all good.

Thoughts?
And any one know how to clear the light?
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post #2 of 35 (permalink) Old 03-04-2018, 07:04 AM
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Muenster, you’ll need something like the DealerTool to check the fault code and reset the Check Engine Light.
If you’re doing your own tinkering and servicing, it’s worth investing in one.
I’ve done a lot of reading online and as far as I can tell - you have to connect to the OBDII port to reset faults. There is no “button combination” like on some older models.

Last edited by eisen77; 03-04-2018 at 07:06 AM.
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post #3 of 35 (permalink) Old 03-04-2018, 08:16 AM
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Muenster, if bikes ECU systems work like most cars, the light will clear itself after a certain number of drive cycles as determined by the manufacturer. Drive cycle determination will vary from mfr. to mfr. but will include length of ride, shifting low to high and vice versa, engine temp, certain times of riding at speed ranges and sometimes turning engine off for a period and performing the same drive type again, etc. Just saying, it may take some time of riding your normal routes to make the ECU determine to turn the light off after it’s been “tested” by their terms. If unable or unwilling to purchase the tools needed, the driving should work, but only if the fault has been righted before beginning the drive cycle. Usually an open PCV system will throw a code. Good luck.

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post #4 of 35 (permalink) Old 03-04-2018, 09:48 AM
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Will leaving the battery disconnected for a certain amount of time (8 + hours) also reset the values and clear the CEL? Just a thought...
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post #5 of 35 (permalink) Old 03-04-2018, 09:53 AM Thread Starter
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Originally Posted by eisen77 View Post
Will leaving the battery disconnected for a certain amount of time (8 + hours) also reset the values and clear the CEL? Just a thought...
Yeah that does work for some cars. I could try that.
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post #6 of 35 (permalink) Old 03-04-2018, 10:10 AM
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Yeah that does work for some cars. I could try that.
It may or may not work, but also may add it’s own set of complications such as stalling, idle, etc. to add to your “is that really a problem” wonders?

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post #7 of 35 (permalink) Old 03-04-2018, 10:28 AM
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It may or may not work, but also may add it’s own set of complications such as stalling, idle, etc. to add to your “is that really a problem” wonders?
Looks like a dealertool or trip to the dealer to plug in diagnostics is the solution then.

Have you had such problems when resetting the ECU by unplugging the battery ?
It should “re-learn” within a few rides, no?
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post #8 of 35 (permalink) Old 03-04-2018, 10:51 AM
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Originally Posted by eisen77 View Post
Looks like a dealertool or trip to the dealer to plug in diagnostics is the solution then.

Have you had such problems when resetting the ECU by unplugging the battery ?
It should “re-learn” within a few rides, no?
My only experience is with cars and my BMW bike. Cars won’t experience that by disconnecting the battery, but cars are more sophisticated and usually have 10-15yrs on motorcycles. Yes, a few rides, but what the rider performs during that ride that actually adds to the “relearn” process is something pretermined by the mfr. The process required by cars is quite tedious and not easily found or published, but needed after some types of service work. My Beemer will react this way after the battery out for relacement. Don’t know about Triumph, so it may take more than a few rides depending upon your ride.

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post #9 of 35 (permalink) Old 03-04-2018, 10:57 AM
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The BMW´s are a total PITA when it comes to diagnostics.
I just got a Hexcode GS911wifi 2 days ago cause of some Canbus errors.
The Triumph DealerTool is a total bargain (and simpler to use) in comparison!
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post #10 of 35 (permalink) Old 03-04-2018, 11:04 AM
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That sucks muensterDeath. You go throught the trouble in an attempt to improve things. Finish everything up and then it goes wrong. :-(

2018 Triumph Bobber with Triumph brown quilted seat, BC Sleeper Pros, Booster Plug, leather fork bag
2009 BMW R1200GS Adventure
2006 Harley Roadking

Last edited by Bikerdib; 03-04-2018 at 11:09 AM.
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