Toyota Yaris Forums - Ultimate Yaris Enthusiast Site
 

 


 
Go Back   Toyota Yaris Forums - Ultimate Yaris Enthusiast Site > Technical Forums > DIY / Maintenance / Service
  The Tire Rack

Reply
 
Thread Tools Display Modes
Old 11-24-2011, 12:35 AM   #1
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
After AFE intake install: Check Engine light. Please help.

Just installed AFE intake. 20 miles later I got the check engine light. Saw in a previous thread some one said the MAF sensor is not hooked up right then but the poster never replied and said it work for him. Can any one give a list of what to do and tell if this has worked for them please. I will be trying to figure this out tomorrow.
Thank you.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 11-24-2011, 03:23 AM   #2
djct_watt
 
Drives: 2010 NCP91 5spd
Join Date: Nov 2009
Location: Thailand
Posts: 450
I had something similar happen when I installed my intake. Try checking all your connections and that there are no leaks, especially near the MAF. If everything checks out ok, try resetting the ECU by pulling the ECU fuse and turning the key to on for a few minutes. Put the fuse back, and start 'er up. Alternatively you can disconnect the negative battery cable for a minute or two.

Either way, when I reset my ECU, it got rid of the check engine light.
__________________
The best modification you can make is between the steering wheel and driver's seat.
djct_watt is offline   Reply With Quote
Old 11-24-2011, 09:19 AM   #3
goliath1812
 
goliath1812's Avatar
 
Drives: 2010 Prius, 2007 Yaris Sedan
Join Date: Oct 2009
Location: Ocala Florida
Posts: 372
If you installed it with the MAF gasket, take the gasket off. That worked for mine.
__________________
goliath1812 is offline   Reply With Quote
Old 11-24-2011, 09:24 AM   #4
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
thanks guys i'm gonna try both suggestions today.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 11-24-2011, 01:49 PM   #5
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Adjusted some clamps, loosened and retightened all clamps.
Checked, engine light still on.

Uninstalled and reinstalled MAF, and gave it a little more slack by disconnecting a cable tie down.
Checked, engine light still on.

Then I unplugged the negative cable for two minutes and reconnected it.
Checked, engine light is off.

True test will come over next couple days driving.

Thanks I hope it stays off. :-)
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 11-24-2011, 03:31 PM   #6
WeeYari
 
WeeYari's Avatar
 
Drives: 06 Polar White 5dr, 13 Soul 4u
Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,463
Fingers crossed for ya. Probably was a MAF leak as that is usually the most common culprit.

You should have disconnected the battery first as that is what cleared the code. Then proceeded with your trouble shooting. Fixing an issue does not clear a code on its own.
__________________
WeeYari is offline   Reply With Quote
Old 11-25-2011, 11:20 AM   #7
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Ohhh thanks, I will keep that in mind.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 12-04-2011, 04:01 AM   #8
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Check engine light came on a week later. I took off maf gasket then and restarted computer by neg term disconnect. Light stayed off for one day then it came on again. The next day I start car and light is magically off already. Should I spray ether at connection points and listen for revving?
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 12-04-2011, 09:24 AM   #9
enviri
 
enviri's Avatar
 
Drives: 2010 Yaris
Join Date: Oct 2008
Location: CT
Posts: 1,501
I had the same issue. i had to do something drastic and made sure there's no air leaking through the maf hole. I REALLY dont recommend it, but i had a few mafs in my house and used sealant.

I loved the intake design, except for that one stupid maf mounting flaw. Also check if the metal cylinder part where you screw into isn't loose or coming out of the molded plastic. if it is, epoxy or superglue that cylinder in.
enviri is offline   Reply With Quote
Old 12-06-2011, 10:25 PM   #10
Captain Slow
My Face Is Ridiculous
 
Captain Slow's Avatar
 
Drives: 2010 Toyota Yaris 3dr LB
Join Date: Dec 2011
Location: Scott, LA
Posts: 456
If any air at all is getting in between the maf and throttle body the unmetered air can cause CEL issues.
Captain Slow is offline   Reply With Quote
Old 12-11-2011, 10:08 PM   #11
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Quote:
Originally Posted by enviri View Post
Also check if the metal cylinder part where you screw into isn't loose or coming out of the molded plastic. if it is, epoxy or superglue that cylinder in.
Which metal cylinder part do you mean?

This problem happens most when I have cruise control on and I'm going uphill at anywhere from 45 to 65 mpg.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 12-27-2011, 05:20 PM   #12
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Hey guys, I got a new tube for free when I complained to AFE. Since I'm still having the problem (although it randomly comes and goes) I am gonna install it. I'll let you know how it goes.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 01-14-2012, 10:37 AM   #13
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Hello, Well that last tube they sent me was the wrong one. They've sent me a third one with a gasket too now.

BUT - when I was waiting for the newest one I removed the white spacers that where originally provided. These held the MAF up and out of being flush in the tube's hole. That was January 1st. It took about a week for the light to turn off after doing that, and the light has stayed off ever since AND I'm noticing better gas milage by two miles better.

... so I havn't even thought about installing any of the newest stuff they sent me, not unless the light comes back on.

Is anyone still checking this? Cause I'll keep you posted. I look at this as an experiment now.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 01-26-2012, 09:38 PM   #14
yaris4062007
 
Drives: 07 BB yaris / 06 Mustang Gt
Join Date: Apr 2007
Location: northern california
Posts: 136
Yes ;)
yaris4062007 is offline   Reply With Quote
Old 03-16-2012, 10:06 PM   #15
bad
Winterizing
 
bad's Avatar
 
Drives: 2010 Toyota Yaris Hatchback
Join Date: Oct 2011
Location: Pennsylvania
Posts: 154
Quote:
Originally Posted by catliektheif
hey so i installed an afe intake too and im having the same problem where the CEL will come on for a day or two then go off and then come back the next day...

so you said you took out the white spacers and that worked right?

did you take the washers out too or just the spacers?

and did you run in to any more problems with it?
Hey catliek,

I can't remember if I took out the washers too. If they were in the same place as the white spacers then I probably did. I did this because it sealed the opening where the MAF fits into better. The MAF body sits flush against the tube when you do this.

Here's what happened. The light stayed off for about a week and a half, then came back on ... I left it alone and it turned off in about three or four days by itself. Next it stayed off for like a month, then it came back on for like two days. Then it stayed off for like a month and a week and came back on for less than a day. It's been off since.

I think it is working fine. I don't know if it needs to adjust itself, but I think that it is reaching a point of hysterisis or something.
__________________
33.7 mpg in PA
bad is offline   Reply With Quote
Old 03-16-2012, 10:59 PM   #16
enviri
 
enviri's Avatar
 
Drives: 2010 Yaris
Join Date: Oct 2008
Location: CT
Posts: 1,501
Quote:
Originally Posted by bad View Post
Which metal cylinder part do you mean?

This problem happens most when I have cruise control on and I'm going uphill at anywhere from 45 to 65 mpg.
the metal cylinder is covered by the black plastic. its where the screw goes in when you mount the maf.
enviri is offline   Reply With Quote
Old 03-17-2012, 12:51 PM   #17
why?
Only Happy When it Rains
 
why?'s Avatar
 
Drives: Yaris LB
Join Date: Jan 2006
Location: harnett county NC
Posts: 4,130
are you still keeping track of your gas mileage? You are the second person to report better gas mileage after adding an intake, makes me want to get one, but i have no idea about that type of thing.
__________________
Colin Chapman disciple
why? is offline   Reply With Quote
Old 03-17-2012, 01:44 PM   #18
1.5
Form>Function
 
1.5's Avatar
 
Drives: 07 Flint Sedan
Join Date: Dec 2009
Location: Tampa
Posts: 4,019
I installed an afe intake with no instructions and using the tips Goliath gave you. I have had it for like 2500 miles or more and no CEL.
__________________
Instagram: @southernstreets_phil
Facebook.com/southernstreetsempire

1.5 is offline   Reply With Quote
Reply

Tags
afe power cold air intake, air filter, air intake, check engine light, mpg

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Compilation of Yaris How-tos/DIYs YarisBueller DIY / Maintenance / Service 39 04-28-2018 08:47 AM
Check Engine and Traction Control Light On limey163 DIY / Maintenance / Service 21 07-14-2013 03:03 PM
AEM cold air intake vs Afe intake... djgab101 Performance Modifications 69 04-28-2013 02:03 PM
AFE cai intake....pros/cons severous01 Performance Modifications 21 06-30-2009 02:55 AM
Check Engine "Injector failure Code" YarisPR DIY / Maintenance / Service 14 03-04-2007 08:13 PM


All times are GMT -4. The time now is 09:16 PM.




YarisWorld
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.