Mass Air flow sensor

phill_54321 · 08-31-2007, 03:54 PM

Does anyone know if you can use carb cleaner to clean the Mass air flow sensor?

Syris · 08-31-2007, 04:08 PM

Why would you be thinking about doing this?

phill_54321 · 08-31-2007, 04:10 PM

the people at auto zone said that if there is no check engine light then the mass air flow sensor is probably not bad just clogged. Two different employees said that the carb cleaner should work

twerb089 · 08-31-2007, 06:24 PM

is it a gte or ge? GTE's have a karmen vortex maf and you can disassemble it and wipe it down and it should be fine

mrnickleye · 09-01-2007, 05:40 PM

Those 'zone' guys are thinking of the other MAF that uses a wire or 2 inside. CRC makes a MAF sensor spray just for cleaning it. NEVER use carb spray. The word CARB should pop out at you.

Carb spray is VERY strong, and can screw up plastics.

BRAKE spray cleaner would be OK.

RedAstig · 07-04-2011, 04:42 PM

I just clean my Mass air flow sensor with CRC sensor cleaner, then after that my car wont run the same way, I dont know what happen, I remember I hit it accidentally while taking it off then spary a lot of cleaner, you think I mess it up? i just order a good one from ebay and waiting for it to come. My Supra is 1988 MK3 7m-GTE, any advice guys? I appreciate it.

p.s.

When I press the gas faster it will not boost and I have to press it lightly. I cant press the gas faster coz the car will slow down, I feel like no much gas going to engine.

Please help

btwilson86 · 07-04-2011, 05:27 PM

The short answer, yes. You did ruin it. The CRC can specifically says to not use on KVAFM style air flow meters, which is what the 7mgte uses.

Hopefully the one on ebay you bought is actually good.

907mge · 07-04-2011, 10:22 PM

Yep, I looked again on my can of crc maf cleaner and it specifically says do not use on a KVAFM and it lists the supra as the first example. I guess it pays to follow instructions.

RedAstig · 07-04-2011, 11:36 PM

Thank you Guys, learn my lesson...I appreciate your time to answer. Just in a hurry when I got my first mk3 after I sold my mk4 then I did it with mk4 but ok, and then immediately spray it on mk3 without really reading it :-) thanks again guys.

RedAstig · 07-04-2011, 11:38 PM

sorry bout my english lol

08-31-2007, 03:54 PM	#1
phill_54321 Stock Join Date: Aug 2007 Location: Georgia Posts: 8	Mass Air flow sensor Does anyone know if you can use carb cleaner to clean the Mass air flow sensor?

08-31-2007, 06:24 PM	#4
twerb089 3" Exhaust Join Date: May 2007 Location: santa barbara Posts: 56	is it a gte or ge? GTE's have a karmen vortex maf and you can disassemble it and wipe it down and it should be fine __________________ 1989 supra turbo automatic soon to become a manual K&N, megan dp, gutted cat, 2 1/2" magnaflow cat back NA intake cam, shimmed actuator no A/C or P/S, therefore no ac condensor, compressor and no ps pump or resivior. gutted interior, 4 tweeters, 2 kicker 12"s powered by an MTX 400W 350rms and an audiobahn 400W 300rms

09-01-2007, 05:40 PM	#5
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	WE don't have Carburetors Those 'zone' guys are thinking of the other MAF that uses a wire or 2 inside. CRC makes a MAF sensor spray just for cleaning it. NEVER use carb spray. The word CARB should pop out at you. Carb spray is VERY strong, and can screw up plastics. BRAKE spray cleaner would be OK. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

07-04-2011, 04:42 PM	#6
RedAstig Stock Join Date: Jul 2010 Location: Tampa Posts: 24	Idk I just clean my Mass air flow sensor with CRC sensor cleaner, then after that my car wont run the same way, I dont know what happen, I remember I hit it accidentally while taking it off then spary a lot of cleaner, you think I mess it up? i just order a good one from ebay and waiting for it to come. My Supra is 1988 MK3 7m-GTE, any advice guys? I appreciate it. p.s. When I press the gas faster it will not boost and I have to press it lightly. I cant press the gas faster coz the car will slow down, I feel like no much gas going to engine. Please help

07-04-2011, 05:27 PM	#7
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	The short answer, yes. You did ruin it. The CRC can specifically says to not use on KVAFM style air flow meters, which is what the 7mgte uses. Hopefully the one on ebay you bought is actually good. __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

08-31-2007, 04:08 PM	#2
Syris 3" Exhaust Join Date: Jun 2007 Location: OH Posts: 67	Why would you be thinking about doing this?

08-31-2007, 04:10 PM	#3
phill_54321 Stock Join Date: Aug 2007 Location: Georgia Posts: 8	the people at auto zone said that if there is no check engine light then the mass air flow sensor is probably not bad just clogged. Two different employees said that the carb cleaner should work

07-04-2011, 10:22 PM	#8
907mge 20psi boost Join Date: Dec 2009 Location: Harrisburg Posts: 759	Yep, I looked again on my can of crc maf cleaner and it specifically says do not use on a KVAFM and it lists the supra as the first example. I guess it pays to follow instructions.

07-04-2011, 11:36 PM	#9
RedAstig Stock Join Date: Jul 2010 Location: Tampa Posts: 24	Thank you Guys, learn my lesson...I appreciate your time to answer. Just in a hurry when I got my first mk3 after I sold my mk4 then I did it with mk4 but ok, and then immediately spray it on mk3 without really reading it :-) thanks again guys.

07-04-2011, 11:38 PM	#10
RedAstig Stock Join Date: Jul 2010 Location: Tampa Posts: 24	sorry bout my english lol

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