REVscene - Vancouver Automotive Forum


Welcome to the REVscene Automotive Forum forums.

Registration is Free!You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today! The banners on the left side and below do not show for registered users!

If you have any problems with the registration process or your account login, please contact contact us.


Go Back   REVscene Automotive Forum > Technical Discussion > Manufacturer Tech Forums > Toyota / Lexus Tech Resources

Toyota / Lexus Tech Resources All Toyota & Lexus Tech info
THIS ADSPACE OPEN FOR ADVERTISEMENT

Reply
 
Thread Tools
Old 05-11-2012, 09:58 AM   #1
My dinner reheated before my turbo spooled
 
Join Date: Oct 2002
Location: Coquitlam
Posts: 1,798
Thanked 91 Times in 34 Posts
looking for back yard mechanic to work on 2001 corolla P0171 lean on bank 1

I am not sure where to start

well I start cleanning the maf sensor using brake cleaner. but no effect. in fact the maf sensor looks pretty clean.


these were done on the last maintenance
310 k - 312 k , the car has 314000 kms at the moment
oil
coolant
thermostat
water pump
plugs
air filter



All I got from reading the google
look for vacuum leak
o2 sensor may be dying?


any backyard mechanic in burnaby new west area looking for work??
Advertisement
valent|n0 is offline   Reply With Quote
Old 05-14-2012, 12:29 PM   #2
RS controls my life!
 
Join Date: Apr 2001
Location: BC, Canada
Posts: 755
Thanked 105 Times in 29 Posts
Replace the maf sensor.
__________________
1992 Eagle Talon Tsi (DSM)
1987 Toyota Corolla GT-S (AE86)
12.80 @ 109.6

My Feedback
TurboTalon is offline   Reply With Quote
Old 05-14-2012, 07:22 PM   #3
I Will not Admit my Addiction to RS
 
narfy's Avatar
 
Join Date: Dec 2002
Location: vancouver
Posts: 572
Thanked 57 Times in 45 Posts
i agree... and this is coming from two toyota professionals...
__________________
__________________
VZN185 - 32" BFG AT, 32" TOYO MT, OME suspension, ARB bumper, Warn winch, 3sixty LED light bar, TRD trans cooler, TRD exhaust, AMT sliders, budbuilt skids...
ZWA10 - stock F-sport with LEDs...
fng@regencyauto.com
narfy is offline   Reply With Quote
Old 05-23-2012, 07:28 PM   #4
RS Lurker, I don't post!
 
Join Date: May 2012
Location: Canada
Posts: 4
Thanked 0 Times in 0 Posts
Check all your vacuum lines for leaks, try to spray some intake medic around your intake manifold and see if it makes a difference. If your scanner lets you see the short term and long term fuel mixtures check those out, should be between -10% to about +10%, max -15% to +15%. If those are good and within spec then it is your maf that is causing the issue. If they are not within spec it means you have a intake leak or too much fuel, most likely a intake leak. if it says +10 or +15% etc, it means it is trying to add fuel to compensate for the unmetered air after the mass airflow sensor hence a intake leak.
Dynamite kid is offline   Reply With Quote
Old 06-03-2012, 10:18 PM   #5
NEWBIE ACCOUNT!
 
Join Date: Sep 2008
Location: vancouver
Posts: 18
Thanked 0 Times in 0 Posts
yee replace that maf sensor i worked on a 03 corolla and if u hook up the scanner n read the maf the readings will be off but it isnt enough to trigger a check engine light
ktieu is offline   Reply With Quote
Old 06-04-2012, 12:22 PM   #6
My dinner reheated before my turbo spooled
 
Join Date: Oct 2002
Location: Coquitlam
Posts: 1,798
Thanked 91 Times in 34 Posts
my obd reader is Scangauge 2 so I can't check the fuel mixture.

I wonder if anyone here will let me borrow their MAF sensor to see if the problem go away? I know the code comes back 10-30 mins after I clear it

I don't want to spend $200 on maf sensor and finds out it vacumm leak or other sensor?
what do you guys think ?
valent|n0 is offline   Reply With Quote
Old 06-04-2012, 02:52 PM   #7
Everyone wants a piece of R S...
 
?uestlove's Avatar
 
Join Date: Jun 2012
Location: bung hole
Posts: 369
Thanked 256 Times in 82 Posts
MAF sensor.
?uestlove is offline   Reply With Quote
Old 06-05-2012, 12:34 AM   #8
NEWBIE ACCOUNT!
 
Join Date: Sep 2008
Location: vancouver
Posts: 18
Thanked 0 Times in 0 Posts
if u dont want to replace the sensor take it to a shop n hav them diagnose it and then u hav a for sure answer
ktieu is offline   Reply With Quote
Reply

Thread Tools

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
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -8. The time now is 03:58 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
SEO by vBSEO ©2011, Crawlability, Inc.
Revscene.net cannot be held accountable for the actions of its members nor does the opinions of the members represent that of Revscene.net