MAF Sensor is a pain in the ****.

zukiracer19 · 03-06-2012, 04:31 PM

My old one took a crap... constantly idles up and down like vaccum, check engine light is on for it... so while i was at junkyard trying to find a fender and bumper... I grabbed 2 MAF sensors out of an 00 se and a 03 se.

Cleaned them with MAF cleaner... let them sit... put them in and neither one lets my car run... hesitates and jerks when accelerating.

Did I just get 2 faulty MAFs or is something else the issue here?

GrandAmMe · 03-06-2012, 04:54 PM

Why'd you bother cleaning them? You might of ruined them just by doing that.

HOYS · 03-06-2012, 05:07 PM

Quote:

Originally Posted by zukiracer19

My old one took a crap... constantly idles up and down like vaccum, check engine light is on for it... so while i was at junkyard trying to find a fender and bumper... I grabbed 2 MAF sensors out of an 00 se and a 03 se.

Cleaned them with MAF cleaner... let them sit... put them in and neither one lets my car run... hesitates and jerks when accelerating.

Did I just get 2 faulty MAFs or is something else the issue here?

Any DTCs?

There might be another part of the closed loop system that is malfunctioning.

sleepyalero · 03-06-2012, 05:33 PM

Quote:

Originally Posted by GrandAmMe

Why'd you bother cleaning them? You might of ruined them just by doing that.

he can easily clean the maf, only way he could have messed it up is the little prongs in the center if he hit em to hard or something.

KillNThrill24 · 03-06-2012, 08:56 PM

sounds like you got something else going on. its possible but highly unlikely that you would pick up not just one but 2 faulty MAF's. you may also have a shorted wire somewhere leading to your MAF causing it to not function properly you should make sure every wire is connected

AaronGTR · 03-07-2012, 05:11 AM

Actually, I think it's quite possible you could have picked up too bad MAF's. If they sit out in the weather unprotected for a long time and the car hasn't been run in a long time, the electronics in them can get ruined. You could try checking on ebay as well. I've seen quite a few for sale on there for cheap. Just keep an eye out for more really old ones. I've seen them where the aluminum screen is GREEN from corrosion. Sure sign to stay away from those!

zukiracer19 · 03-07-2012, 06:53 AM

It's retarded, my maf i had on it was working till AFTER I got my car inspected, then threw a code with my cam sensor ... i replaced cam sensor before the maf sensor went... then both came back up -_-.... i hate this car with a passion. I'll try cleaning all 3 and letting them sit for awhile and swap all them in and see if anything changes.

zukiracer19 · 03-07-2012, 09:52 AM

i put a warm air intake i just made on, put another maf in... i hit the throttle and it has delay... but if i put my stock box on it doesn't do it... and id say its about 6-7 inches from maf(the filter)

PSKpsu · 03-07-2012, 02:51 PM

You have to use a special cleaner with the MAF.
I would check the connector that goes to the MAF. my MAF was throwing a DTC and made it look like a bad MAF. What actually happened was that the signal and power wires were loose in the connector. so i would check to see if your getting the 5v power from the pcm and the ground.

zukiracer19 · 03-07-2012, 03:34 PM

I bought the special cleaner for it already. It seems to be running a hell of a lot better but CE light still on.

Malaclypse · 03-07-2012, 08:54 PM

Quote:

Originally Posted by zukiracer19

i put a warm air intake i just made on, put another maf in... i hit the throttle and it has delay... but if i put my stock box on it doesn't do it... and id say its about 6-7 inches from maf(the filter)

Sounds like you may be on to something.

Also, if you installed the intake with an oiled air filter that may be exacerbating the problem.

zukiracer19 · 03-08-2012, 08:30 AM

???????? its an old K & N i got with my cold air intake back in the day... i just have a slight bend pipe and added a coupling and wallah home made

.

But my torque converter is screaming to get replaced... started clicking really loud yesterday.. ill prolly drive it to trans shop tonight. can a bad torque converter destroy a entire transmission?

HOYS · 03-08-2012, 11:29 AM

Quote:

Originally Posted by zukiracer19

???????? its an old K & N i got with my cold air intake back in the day... i just have a slight bend pipe and added a coupling and wallah home made

.

But my torque converter is screaming to get replaced... started clicking really loud yesterday.. ill prolly drive it to trans shop tonight. can a bad torque converter destroy a entire transmission?

Yes. If it has parts physically breaking inside of the TC then all that junk might get circulated into the transmission.

zukiracer19 · 03-08-2012, 02:39 PM

yea i noticed if i put it in drive it SLAMS in... could be because valve body has so much **** in it... Anyone know where i can order a certified transmission with a long warranty?

AaronGTR · 03-08-2012, 04:55 PM

It will also slam into drive if you are having MAF sensor problems though. That was the problem all the people with the original RSM S/C kit had. It deleted the MAF, and the PCM uses the MAF signal as part of the equation for determining engine load and require line pressure for transmission shifting. No MAF signal = hard shifts and transmission damage.

KillNThrill24 · 03-08-2012, 10:52 PM

Quote:

Originally Posted by AaronGTR

It will also slam into drive if you are having MAF sensor problems though. That was the problem all the people with the original RSM S/C kit had. It deleted the MAF, and the PCM uses the MAF signal as part of the equation for determining engine load and require line pressure for transmission shifting. No MAF signal = hard shifts and transmission damage.

really? would that be the same for most vehicles? my mom has an 05 explorer that, same thing, you shift into drive and it slams hard. its been slamming so long tho that im thinking tranny is done for. thats 2 bad trannys in the driveway, cuz it seems with each passing day my GT's tranny is getting worse. today it wouldnt shift into drive right away, it waited till it was good and ready. so i too would be interested in knowing of any warranted transmissions

afterdeath07 · 03-08-2012, 11:08 PM

jasper trannys have a 3 year 100k warranty on them, but the work has to be done by a jasper installer i believe, could be mistaken.

edit: link to their warranty web page here

zukiracer19 · 03-09-2012, 09:21 AM

Anyone have the wiring diagram for the MAF sensor?

AaronGTR · 03-09-2012, 03:58 PM

Quote:

Originally Posted by KillNThrill24

really? would that be the same for most vehicles? my mom has an 05 explorer that, same thing, you shift into drive and it slams hard. its been slamming so long tho that im thinking tranny is done for. thats 2 bad trannys in the driveway, cuz it seems with each passing day my GT's tranny is getting worse. today it wouldnt shift into drive right away, it waited till it was good and ready. so i too would be interested in knowing of any warranted transmissions

It depends on the car and the computer programming, and how it uses various sensors. Some cars don't even have MAF sensors to begin with. Some don't have MAP sensors. Some have both (like ours) but use them in different ways.

I'm just stating what I know from what I've read in the service manual, on the tuning forum, and what I've personally observed with this car. My guess would be that many GM cars from the late 90's through early 2000's will use similar control systems, but there is no guarantee. Cars from other manufacturers may be totally different.

zukiracer19 · 03-10-2012, 09:33 AM

I'm just curious if my wiring is off.... or something along those lines... I soldered the wires color to color & heat shrinked / taped them off... They should be getting a good connection.

03-06-2012, 04:31 PM	#1
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	MAF Sensor is a pain in the . My old one took a crap... constantly idles up and down like vaccum, check engine light is on for it... so while i was at junkyard trying to find a fender and bumper... I grabbed 2 MAF sensors out of an 00 se and a 03 se. Cleaned them with MAF cleaner... let them sit... put them in and neither one lets my car run... hesitates and jerks when accelerating. Did I just get 2 faulty MAFs or is something else the issue here?

03-06-2012, 04:54 PM	#2
GrandAmMe It's Personal... AKA: Adam Join Date: Nov 2008 Location: Ajax, ON Age: 26 Posts: 1,005 Vehicle: 2006 Saab 93 Aero	Why'd you bother cleaning them? You might of ruined them just by doing that. __________________ '06 Saab 93 Aero 2.8T 'Combi 6MT

03-06-2012, 08:56 PM	#5
KillNThrill24 GAGT - Member AKA: Joey Join Date: May 2009 Location: Berea OH Age: 29 Posts: 410 Vehicle: 99 GAGT/ 00 Mustang GT	sounds like you got something else going on. its possible but highly unlikely that you would pick up not just one but 2 faulty MAF's. you may also have a shorted wire somewhere leading to your MAF causing it to not function properly you should make sure every wire is connected __________________ 99 GAGT: black painted rims, tinted tail lights, 6000k HID headlights and fogs (DRL disabled), pioneer AVH-P3200BT, 2 pioneer 6x9's, rockford p1 6.5's in the front doors, american bass XD 15's in custom ported box, RE xt4000de-v2 on subs, rockford t400-2 on highs, custom intake, 42% tint, the mufflerless madman... 00 Mustang GT: Ford Racing 4.10's, BBK cold air, Bassani SS catted x (no cats) 3in Borla XR1's, Eibach's, B&M Short Throw and T handle, SCT Race91 tuned

03-07-2012, 05:11 AM	#6
AaronGTR BlingWithBallz AKA: Aaron Join Date: Aug 2002 Location: Detroit area, MI Age: 43 Posts: 12,254 Vehicle: 2000 Grand Am GT1 2dr	Actually, I think it's quite possible you could have picked up too bad MAF's. If they sit out in the weather unprotected for a long time and the car hasn't been run in a long time, the electronics in them can get ruined. You could try checking on ebay as well. I've seen quite a few for sale on there for cheap. Just keep an eye out for more really old ones. I've seen them where the aluminum screen is GREEN from corrosion. Sure sign to stay away from those! __________________ The few, the proud, the boosted! 13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011) See it here. the total package.

03-08-2012, 04:55 PM	#15
AaronGTR BlingWithBallz AKA: Aaron Join Date: Aug 2002 Location: Detroit area, MI Age: 43 Posts: 12,254 Vehicle: 2000 Grand Am GT1 2dr	It will also slam into drive if you are having MAF sensor problems though. That was the problem all the people with the original RSM S/C kit had. It deleted the MAF, and the PCM uses the MAF signal as part of the equation for determining engine load and require line pressure for transmission shifting. No MAF signal = hard shifts and transmission damage. __________________ The few, the proud, the boosted! 13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011) See it here. the total package.

03-07-2012, 06:53 AM	#7
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	It's retarded, my maf i had on it was working till AFTER I got my car inspected, then threw a code with my cam sensor ... i replaced cam sensor before the maf sensor went... then both came back up -_-.... i hate this car with a passion. I'll try cleaning all 3 and letting them sit for awhile and swap all them in and see if anything changes.

03-07-2012, 09:52 AM	#8
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	i put a warm air intake i just made on, put another maf in... i hit the throttle and it has delay... but if i put my stock box on it doesn't do it... and id say its about 6-7 inches from maf(the filter)

03-07-2012, 02:51 PM	#9
PSKpsu GAGT - Newbie AKA: Josh Join Date: Sep 2011 Location: Pittsburg KS Age: 31 Posts: 28 Vehicle: 2000 Grand Am GT	You have to use a special cleaner with the MAF. I would check the connector that goes to the MAF. my MAF was throwing a DTC and made it look like a bad MAF. What actually happened was that the signal and power wires were loose in the connector. so i would check to see if your getting the 5v power from the pcm and the ground.

03-07-2012, 03:34 PM	#10
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	I bought the special cleaner for it already. It seems to be running a hell of a lot better but CE light still on.

03-08-2012, 08:30 AM	#12
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	???????? its an old K & N i got with my cold air intake back in the day... i just have a slight bend pipe and added a coupling and wallah home made . But my torque converter is screaming to get replaced... started clicking really loud yesterday.. ill prolly drive it to trans shop tonight. can a bad torque converter destroy a entire transmission?

03-08-2012, 02:39 PM	#14
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	yea i noticed if i put it in drive it SLAMS in... could be because valve body has so much **** in it... Anyone know where i can order a certified transmission with a long warranty?

03-08-2012, 11:08 PM	#17
afterdeath07 GAGT AKA: brian Join Date: Feb 2012 Location: fox cities, wi Posts: 104 Vehicle: 2000 Grand Am GT1	jasper trannys have a 3 year 100k warranty on them, but the work has to be done by a jasper installer i believe, could be mistaken. edit: link to their warranty web page here __________________ ______________________________________________ 1992 Laser RS Turbo - Scrapped 2001 Grand Am SE1 - Totaled 1995 Dodge Spirit v6 Gold Edition - Scrapped 2000 Grand Am GT1 - 245k and climbing fast Ill show those honda boys what high mileage looks like Last edited by afterdeath07; 03-08-2012 at 11:10 PM.

03-09-2012, 09:21 AM	#18
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	Anyone have the wiring diagram for the MAF sensor?

03-10-2012, 09:33 AM	#20
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	I'm just curious if my wiring is off.... or something along those lines... I soldered the wires color to color & heat shrinked / taped them off... They should be getting a good connection.

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