Previous Thread
Next Thread
New Reply
Print Thread
Rate Thread
MAF Sensor - How To Clean #67215 Dec 9, 2:18pm Dec 9, 2:18pm
Joined: May 2002
Posts: 6,007
Los Angeles, CA
2001 Absolutely Red Toyota Celica GT
isaac OP
ECelica Admin
2001 Toyota Celica GT
isaac OP
2001 Absolutely Red Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT

Joined: May 2002
Posts: 6,007
Los Angeles, CA
MAF Sensor - How To Clean
Cleaning the MAF Sensor
Pictures & Edits by jummywummy@hotmail.com

The Mass Air Flow sensor is crucial to the fuel systems operation. This is the sensor that the engine computer uses to measure how much air is entering the engine so that it may properly deliver the proper amount of fuel. A dirty MAF sensor hot wire may cause several problems to include: difficult start, poor acceleration, pinging, rough idling, to name a few. This whole procedure should take you less than ten minutes.

Use Q-Tips and "CRC Mass Air Flow Sensor Cleaner" . A cleaner that will not attack plastic or leave a residue on the wires. Its available for about $8 USD at your local auto parts retailer.

Pics are self explanatory

Linked Image

1. Locate the MAF Sensor on the air Intake pipe just behind the Air Filter box. Remove the MAF Sensor from the air Intake pipe by removing the two Phillips screws.


Linked Image

2. Disconnect the MAF Sensor wire harness by pressing the tab and pulling.


Linked Image

3. Spray cleaner on to the platinum wires liberally to clean off any built on dirt residue. You may want to remove the rubber o-ring around the housing to prevent the possibility of the cleaning agent making it brittle.


Linked Image

Linked Image

4. Inspect the platinum hot wire inside the MAF housing. You can see the air temperature thermistor on the side in this view.

Linked Image

5. Replace the cleaned MAF sensor back into air Intake pipe.


6. Put it all back together and you're done.


Here is a before and after MAF cleaning dyno chart plotting torque over RPM.

Linked Image

There's no magical power gain, but it's a good idea to keep your engine maintained.

Check the MAF for dirt and deposits every time you check the Air Filter, and that should help keep your engine running at top Performance.

...

CRC Mass Air Flow Sensor Cleaner is available for about $8 USD at your local auto parts retailer.

MAFCleaner.jpg
Re: MAF Sensor - How To Clean [Re: isaac] #67216 Dec 10, 6:20am Dec 10, 6:20am
Joined: Jul 2003
Posts: 2,043
Williamsport, PA
trog2233
ECelica Staff
2004 GMC Canyon Z-71
trog2233
ECelica Staff
2004 GMC Canyon Z-71

Joined: Jul 2003
Posts: 2,043
Williamsport, PA
Awesome...i've had to do this for awhile...now i think i will grin

Re: MAF Sensor - How To Clean [Re: isaac] #67217 Dec 24, 3:17pm Dec 24, 3:17pm
Joined: Nov 2003
Posts: 53
san diego ca 858
gtsbryan
Member
2000 Toyota Celica GTS
gtsbryan
Member
2000 Toyota Celica GTS

Joined: Nov 2003
Posts: 53
san diego ca 858
you always have some valuable info GREAT WORK man.. DYNO and everything what else can you ask for!!

Re: MAF Sensor - How To Clean [Re: isaac] #67218 Jan 18, 10:56pm Jan 18, 10:56pm
Joined: Jun 2003
Posts: 260
Chatsworth, CA
C
calidrifter
El Guapo
1997 Nissan 240SX
calidrifter
C
El Guapo
1997 Nissan 240SX

Joined: Jun 2003
Posts: 260
Chatsworth, CA
Be careful when you do this cause if you mess up you just cost yourself a $200-$300 core.


Touge Knights - Canyon Driving Team!
Re: MAF Sensor - How To Clean [Re: ct] #67219 Feb 20, 5:57am Feb 20, 5:57am
Joined: Feb 2004
Posts: 8
lillinois,USA
2001 SILVER Toyota Celica GT
joelcelica
New Member
2001 Toyota Celica GT
joelcelica
2001 SILVER Toyota Celica GT
New Member
2001 Toyota Celica GT

Joined: Feb 2004
Posts: 8
lillinois,USA
Man Isaac I have been trying to figure out what was wrog with my car for the longest time now, thanks you just saved me some money cause I was gonna take it to the shop, who knows what they would have came up with and charged me.

Re: MAF Sensor - How To Clean [Re: isaac] #67220 Feb 27, 9:30am Feb 27, 9:30am
Joined: Feb 2004
Posts: 255
WI
YoshiVS
Member
2000 Toyota Celica
YoshiVS
Member
2000 Toyota Celica

Joined: Feb 2004
Posts: 255
WI
Awsome work!

Something I have to look out for now...


With Style, Comes Speed
Veilside Celica GTS
Re: MAF Sensor - How To Clean [Re: isaac] #67221 Jun 4, 3:06pm Jun 4, 3:06pm
Joined: Jan 2004
Posts: 98
California
BAC
Member
2000 Toyota Celica GT
BAC
Member
2000 Toyota Celica GT

Joined: Jan 2004
Posts: 98
California
i tried to disconnect it but had a hard time taking it off...is it really supposed to be hard to diconnect it??? or is it unnessary to do so?

Re: MAF Sensor - How To Clean [Re: BAC] #67222 Jul 22, 10:20pm Jul 22, 10:20pm
Joined: Nov 2003
Posts: 2,224
O
oas
Specialist
oas
O
Specialist

Joined: Nov 2003
Posts: 2,224
noob question, if i buy a new Intake do i get a new maf then since i tried to look on some pics and to me its seem like its sitting on the Intake or is it just me thats sleeeeepy

Re: MAF Sensor - How To Clean [Re: oas] #67223 Jul 23, 3:20am Jul 23, 3:20am
Joined: May 2002
Posts: 6,007
Los Angeles, CA
2001 Absolutely Red Toyota Celica GT
isaac OP
ECelica Admin
2001 Toyota Celica GT
isaac OP
2001 Absolutely Red Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT

Joined: May 2002
Posts: 6,007
Los Angeles, CA

Re: MAF Sensor - How To Clean [Re: isaac] #450140 Jul 19, 11:17am Jul 19, 11:17am
Joined: Jul 2014
Posts: 1
usa
R
redalpha
New Member
redalpha
R
New Member

Joined: Jul 2014
Posts: 1
usa
That was very useful information for finally solving a long term problem of mine.
Thanks!

Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
devilinacelica
devilinacelica
2000 Toyota Celica GT
Nj

Posts: 233
Joined: September 2002
Thanks: Bat for all his kits ;)
Random: riiight
Show All Member Profiles 
Recent Topics
Resurrecting a 2000 GT automatic.
by cosmo64. 10/19/2017 1:19 PM
APR strut bar brace for 2000 GTS
by TweakMaster. 10/15/2017 8:02 PM
Help with vacuum hose
by Chaos. 10/15/2017 6:07 PM
My 2000 GTS
by TweakMaster. 10/14/2017 6:29 PM
Replaced bad MAF. Now getting p0300/p1300 CEL codes. HELP!
by Bblee1989. 10/14/2017 4:34 PM
What kind of rim is this?
by mariahjordan. 10/10/2017 8:05 PM
Changed Headlight but so Dimm
by smsih. 10/10/2017 2:55 PM
Anyone know this remote unlock key? trying to ID it!
by kieronboz. 10/04/2017 2:36 AM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20171020)