no longer a cel? - Toyota Yaris Forums

toad · 07-19-2010, 01:41 PM

sorry if a repost, but i recently was driving back home from vacation when the check engine light came on. i was driving the wife's 2007 yaris sedan and it has approx. 94,000 miles on it. car was/is running fine and i stopped by the nearest garage to see if he had a scanner to check the code. he claims toyota(and other manufacturers) put codes in to remind you of service intervals for major stuff(ie. tune ups, etc.) and it wouldn't be a problem to drive the rest of the way home so long as the car wasn't acting funny.

anyways, i turned-down the scan because he wanted over $100 just to tell me the code and drove the rest of the 5 hours home. again, car ran fine and as i got into the car yesterday to go buy a scanner myself the cel is gone! is this normal for the light to disappear or is the problem resolved? should i still get the scanner just to see what code it did trip when the light initially came on? thanks!

swidd · 07-19-2010, 02:13 PM

For future reference... Autozone/Advance Auto Part will look up codes for free.

127.0.0.1 · 07-19-2010, 03:03 PM

some MIL codes are based on thresholds and won't
pop the MIL until it lasts for a time period, or occurs
so many times in a row before staying gone for good.

temporary code like that sounds like:

low on gas and sucked some air

or

MAF needs cleaning

or

engine misfire...bad gas, or head gasket/electronics
-------------------------------------------------------
Get an OBD-II scanner and find out what the code was,
you can get pending codes if there are any...use swidds idea of autozone free scan

firemachine69 · 07-20-2010, 10:14 AM

Buy a scanner. Best hundred bucks I ever spent.

127.0.0.1 · 07-20-2010, 12:00 PM

Quote:

Originally Posted by firemachine69

Buy a scanner. Best hundred bucks I ever spent.

30 bucks on fleabay. if a code is all you want.

toad · 07-20-2010, 02:18 PM

thanks for the help! i've got a coupon to get one for $40 so i think i'll just go ahead and pick it up just for my own piece of mind.

NH3R717 · 07-22-2010, 11:58 AM

Advanced Auto...

R2D2 · 07-25-2010, 03:16 AM

It takes 40 start cycles for the code to be cleared after the cel goes off (meaning the code is no longer active) so if you get a code reader soon the code may still be readable.

R2

07-19-2010, 01:41 PM	#1
toad Drives: street-legal go-kart Join Date: Oct 2008 Location: bowser's castle Posts: 627	no longer a cel? sorry if a repost, but i recently was driving back home from vacation when the check engine light came on. i was driving the wife's 2007 yaris sedan and it has approx. 94,000 miles on it. car was/is running fine and i stopped by the nearest garage to see if he had a scanner to check the code. he claims toyota(and other manufacturers) put codes in to remind you of service intervals for major stuff(ie. tune ups, etc.) and it wouldn't be a problem to drive the rest of the way home so long as the car wasn't acting funny. anyways, i turned-down the scan because he wanted over $100 just to tell me the code and drove the rest of the 5 hours home. again, car ran fine and as i got into the car yesterday to go buy a scanner myself the cel is gone! is this normal for the light to disappear or is the problem resolved? should i still get the scanner just to see what code it did trip when the light initially came on? thanks!

07-25-2010, 03:16 AM	#8
R2D2 Crazy Oil Sniffer Drives: MM 09 Yaris 5 Dr LB "Click" Join Date: May 2009 Location: ME Posts: 498	It takes 40 start cycles for the code to be cleared after the cel goes off (meaning the code is no longer active) so if you get a code reader soon the code may still be readable. R2 __________________ "The howl was the sound of God’s casting pot, the morphing of my cells into shape, the forming of oceans out of molten premordial plasma. And I could feel it. I could cry for it. I could cry with it." -The Fitful One

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07-19-2010, 02:13 PM	#2
swidd Drives: Yaris HB Join Date: Jul 2007 Location: Central Alabama, GOD BLESS AMERICA Posts: 755	For future reference... Autozone/Advance Auto Part will look up codes for free.

07-19-2010, 03:03 PM	#3
127.0.0.1 Banned Drives: '10 Yaris5drHB+99 4runner LTD Join Date: Sep 2009 Location: NE Posts: 672	some MIL codes are based on thresholds and won't pop the MIL until it lasts for a time period, or occurs so many times in a row before staying gone for good. temporary code like that sounds like: low on gas and sucked some air or MAF needs cleaning or engine misfire...bad gas, or head gasket/electronics ------------------------------------------------------- Get an OBD-II scanner and find out what the code was, you can get pending codes if there are any...use swidds idea of autozone free scan

07-20-2010, 10:14 AM	#4
firemachine69 School'er of hard knocks Drives: Silver Yaris 4dr. HB Join Date: Oct 2008 Location: Sudbury, On Posts: 556	Buy a scanner. Best hundred bucks I ever spent.

07-20-2010, 02:18 PM	#6
toad Drives: street-legal go-kart Join Date: Oct 2008 Location: bowser's castle Posts: 627	thanks for the help! i've got a coupon to get one for $40 so i think i'll just go ahead and pick it up just for my own piece of mind.

07-22-2010, 11:58 AM	#7
NH3R717 View User's Garage Drives: Yaris 3dr Hatch, White Join Date: May 2010 Location: Charlotte Posts: 14	Advanced Auto...