Check Engine Light - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

xcracer228 · 01-29-2012, 09:48 PM

I took the 450x out for a spin today. I noticed the check engine light was on. It wasn't on before, but i just put the idle adjustor screw in from GTT because i got a Rekluse. It sounded and ran perfectly fine, so maybe i have the idle set too high? Any suggestions?

eagertorace · 01-30-2012, 01:22 AM

I put one on mine as well with no issues or check engine light....don't know
what could cause it

xcracer228 · 01-30-2012, 12:47 PM

It wouldn't come on if my clearences where out on the rekluse would it?

Kovatch · 01-30-2012, 01:26 PM

Is is on constantly or flashing?

ridindirty07 · 01-30-2012, 02:51 PM

mine came on but it was cause of a blown head gasket

xcracer228 · 01-31-2012, 08:03 AM

It is just on constantly. I know my head gasket isn't blown.

xcracer228 · 01-31-2012, 08:30 AM

Just thought of something else. I just put a 24v system on it too. Is there some kind of sensor that could be reading to much voltage to the starter?

xcracer228 · 02-06-2012, 10:13 AM

I think it is something I have just installed. I went up to the badlands yesterday on it, the light came on after about 5 minutes of being there. It sounded fine and was running perfect. I just said screw it and rode all day, didn't take it easy on it at all, and never had a single problem with it.

victor_yfz450 · 02-06-2012, 02:40 PM

Quote:

Originally Posted by xcracer228

I took the 450x out for a spin today. I noticed the check engine light was on. It wasn't on before, but i just put the idle adjustor screw in from GTT because i got a Rekluse. It sounded and ran perfectly fine, so maybe i have the idle set too high? Any suggestions?

Your idle it is so high, you need to lower the idle and the light goes off.

victor

xcracer228 · 02-06-2012, 04:17 PM

do you think it could be reading that there is water in the plug that I took off the throttle body to put the idle speed adjuster on?

theyfzman · 02-06-2012, 05:15 PM

like stated before, turn the idle down just a bit and my bet will be it goes off, mine was on and I backed it off a bit, disconnected the battery and let it sit for a bit rehooked and no more light u might want to give it a try, easy fix if that is it

xcracer228 · 02-06-2012, 07:24 PM

Quote:

Originally Posted by theyfzman

like stated before, turn the idle down just a bit and my bet will be it goes off, mine was on and I backed it off a bit, disconnected the battery and let it sit for a bit rehooked and no more light u might want to give it a try, easy fix if that is it 8|

Will do! Ill let you know if it works. Thanks for the help

eagertorace · 02-06-2012, 08:41 PM

and make sure you tape up that connector that you took off from the throttle body.

01-29-2012, 09:48 PM	#1 (permalink)
xcracer228 Member Join Date: Mar 2011 Location: Farmersburg, IN Posts: 54	Check Engine Light I took the 450x out for a spin today. I noticed the check engine light was on. It wasn't on before, but i just put the idle adjustor screw in from GTT because i got a Rekluse. It sounded and ran perfectly fine, so maybe i have the idle set too high? Any suggestions?

01-30-2012, 01:22 AM	#2 (permalink)
eagertorace Senior Member Join Date: Mar 2008 Location: KENTUCKY !! Posts: 524	I put one on mine as well with no issues or check engine light....don't know what could cause it __________________ KCCR 2010 yfz/x BB edition...GONE KTM 505SX Gtthunder....

01-30-2012, 01:26 PM	#4 (permalink)
Kovatch Senior Member Join Date: Aug 2007 Location: NE OH Posts: 823	Is is on constantly or flashing? __________________ 2009 YFZ450R Baldwin, DP, DID, Houser, K&N, Maxxis, LSR, PD, PEP, Rath, RPM, Sparks, SunStar, WorksConnection Waiting on Six5Designs for my YFZR stuff. =) Special thanks to Baldwin Motorsports

02-06-2012, 08:41 PM	#13 (permalink)
eagertorace Senior Member Join Date: Mar 2008 Location: KENTUCKY !! Posts: 524	and make sure you tape up that connector that you took off from the throttle body. __________________ KCCR 2010 yfz/x BB edition...GONE KTM 505SX Gtthunder....

01-30-2012, 12:47 PM	#3 (permalink)
xcracer228 Member Join Date: Mar 2011 Location: Farmersburg, IN Posts: 54	It wouldn't come on if my clearences where out on the rekluse would it?

01-30-2012, 02:51 PM	#5 (permalink)
ridindirty07 Member Join Date: Nov 2008 Location: Kansas Posts: 50	mine came on but it was cause of a blown head gasket

01-31-2012, 08:03 AM	#6 (permalink)
xcracer228 Member Join Date: Mar 2011 Location: Farmersburg, IN Posts: 54	It is just on constantly. I know my head gasket isn't blown.

01-31-2012, 08:30 AM	#7 (permalink)
xcracer228 Member Join Date: Mar 2011 Location: Farmersburg, IN Posts: 54	Just thought of something else. I just put a 24v system on it too. Is there some kind of sensor that could be reading to much voltage to the starter?

02-06-2012, 10:13 AM	#8 (permalink)
xcracer228 Member Join Date: Mar 2011 Location: Farmersburg, IN Posts: 54	I think it is something I have just installed. I went up to the badlands yesterday on it, the light came on after about 5 minutes of being there. It sounded fine and was running perfect. I just said screw it and rode all day, didn't take it easy on it at all, and never had a single problem with it.

02-06-2012, 04:17 PM	#10 (permalink)
xcracer228 Member Join Date: Mar 2011 Location: Farmersburg, IN Posts: 54	do you think it could be reading that there is water in the plug that I took off the throttle body to put the idle speed adjuster on?

02-06-2012, 05:15 PM	#11 (permalink)
theyfzman Junior Member Join Date: Jul 2007 Posts: 20	like stated before, turn the idle down just a bit and my bet will be it goes off, mine was on and I backed it off a bit, disconnected the battery and let it sit for a bit rehooked and no more light u might want to give it a try, easy fix if that is it

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