Mass flow air sensor - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 04-30-2012, 05:57 PM   #1
Jeeper
 
JkJared's Avatar
 
Join Date: Mar 2011
Posts: 331
Mass flow air sensor

How do you clean it out and where is it located my rpms are dropping really low when I'm stopped at lights sometimes. A fellow member said that could be the issue. I was thinking of just taking it to the dealer for an emissions service which I know they clean out the throttle body but not sure if they clean that sensor.. Thanks

JkJared is offline   Quote Quick Reply
Old 04-30-2012, 05:58 PM   #2
Jeeper
 
snikt's Avatar
 
Join Date: Mar 2012
Location: Littleton, CO
Posts: 665
I used to do this on my Mustang, a q-tip and alcohol works for cleaning the sensor itself.

Not sure where it is on the Jeep, should be between the throttle body and air box. On the Ford I needed safety torx bits to remove the sensor from the housing.

snikt is offline   Quote Quick Reply
Old 04-30-2012, 06:17 PM   #3
Jeeper
 
JkJared's Avatar
 
Join Date: Mar 2011
Posts: 331
Quote:
Originally Posted by snikt
I used to do this on my Mustang, a q-tip and alcohol works for cleaning the sensor itself.

Not sure where it is on the Jeep, should be between the throttle body and air box. On the Ford I needed safety torx bits to remove the sensor from the housing.
Hmm I might just take it for an emissions service they clean the throttle body and clean out the vacuum lines and probably clean the sensor for like 150 bucks.
JkJared is offline   Quote Quick Reply
Old 04-30-2012, 06:20 PM   #4
Jeeper
 
TOKKIE's Avatar
 
Join Date: Mar 2010
Location: Sonora, CA.
Posts: 414
If i'm not mistaken, the jeeps use a speed density system. There is no maf on this type of system.
TOKKIE is offline   Quote Quick Reply
Old 04-30-2012, 06:26 PM   #5
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 33,888
Quote:
Originally Posted by TOKKIE
If i'm not mistaken, the jeeps use a speed density system. There is no maf on this type of system.
OP talking about the MAP sensor?
__________________
2007 Rubicon/Rock Krawler TR 2.5 coils/rear TB/Rancho 9000 31/32XL shocks/Teraflex monster TB/Synergy highsteer,tie rod, ball joints/Hankook MT 315-75-16 on Level 8 ZX's/MC front SB links/Rancho geo brackets & shocks/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings=Frankinjeep from hell.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is online now   Quote Quick Reply
Old 04-30-2012, 06:28 PM   #6
Jeeper
 
TOKKIE's Avatar
 
Join Date: Mar 2010
Location: Sonora, CA.
Posts: 414
Map sensor would be part of the speed density system, but would flag a check engine light i would think. I would think maybe a sticking idle air control valve?
TOKKIE is offline   Quote Quick Reply
Old 04-30-2012, 06:32 PM   #7
MARGARET, 10-14-51\6-1-12

WF Supporting Member
 
GREEN-MACHINE's Avatar
 
Join Date: Aug 2010
Location: PEOPLES REPUBLIC OF MASSACHUSETTS
Posts: 10,250
most likely the iac,,, idle air control motor,, its part of the throttle body
__________________

life is too short to be taken seriously all the time,,,, go buy a MR.potato head and have some fun.
GREEN-MACHINE is offline   Quote Quick Reply
Old 04-30-2012, 06:36 PM   #8
Jeeper
 
Join Date: Feb 2012
Location: NoVA
Posts: 293
Did not see a MAF on the Jeep. I suspect SD also.
__________________
2012 Winter Chill JKU
05 Daytona Blue 350Z
03 Sonic Blue SVT Lightning
steed77 is offline   Quote Quick Reply
Old 04-30-2012, 07:42 PM   #9
Jeeper
 
JkJared's Avatar
 
Join Date: Mar 2011
Posts: 331
Yeah it just randomly drops to about 400 rpms seems like its gonna stall out. Also I've been getting a faint sound of like mables for months but it's getting worse and the hotter the day the worse it is. Sometimes on cold days I won't even hear it.
JkJared is offline   Quote Quick Reply
Old 04-30-2012, 07:45 PM   #10
Jeeper
 
JkJared's Avatar
 
Join Date: Mar 2011
Posts: 331
But it mostly sounds like a cat purring loudly when it's faint and mables when it's really going more noticeable from 2-3.5k rpms and only in D not neutral or park. Could this be my catalytic converter going on me? And btw its not an exhaust rattle or anything to do with the heat shields.

JkJared is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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 Off
Pingbacks are Off
Refbacks are Off



logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 01:17 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC