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i think my MAF went bad

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Old Feb 17, 2006 | 12:55 PM
  #1  
CC89Formula's Avatar
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From: Amarillo TX
Car: 89 Formula
Engine: 5.7 TPI
Transmission: 700R4
i think my MAF went bad

my car wont idle, i can hold it at about 1500rpm, but no lower than that. i was told to unhook the MAF and see what happened, and it ran, not well, but it ran. as soon as i hook it back up, the car dies. sooo, anyone know where i can get a new MAF cheap? the only place ive looked is TPIS and they want like 260 for a stock one and 300 for a modified one...which is wwwaaayyy outa my price range right now, thanks for any info.
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Old Feb 17, 2006 | 02:05 PM
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From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
Aren't they like $160 from Autozone? I see them used for $75 quite a bit.
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Old Feb 17, 2006 | 02:36 PM
  #3  
fitbmxseries1's Avatar
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From: fond du lac, WI
Car: 1988 trans am GTA
Engine: 350 tpi
Transmission: 700r4
DEFINATLY dont buy the one from autozone or advanced auto... if it cost around 160 or less its complete crap, ive gone through 3 cheap ones.. well not cheap but cheapest ones. i ordered one from jegs a while ago that was for the vette for about 300$ and this one has a warrenty. but all electronics ive had to deal with from any of those places where i thought i was getting a good deal ended up being crap. so id sugest spending the money, also have some one check the codes the car is showing it will tell you if thats the real problem.... and ive never seen one of these cars able to run with it unlpugged so thats kinda weird!
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Old Feb 17, 2006 | 03:44 PM
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IROCThe5.7L's Avatar
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From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Did you throw any codes?
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Old Feb 17, 2006 | 03:55 PM
  #5  
CC89Formula's Avatar
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From: Amarillo TX
Car: 89 Formula
Engine: 5.7 TPI
Transmission: 700R4
it hasnt been running for a few weeks, heres a link to the post describing it. https://www.thirdgen.org/techbb2/sho...hreadid=343356

i didnt think the car would run without the MAF either...granted, it runs like crap, but it runs.

the only time it throws codes is when the car dies with the MAF hooked up, but when i try to pull the code the only thing i get is the no error code, which i think is code 12. all i know is im confused.
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Old Feb 17, 2006 | 04:44 PM
  #6  
John 89 Formula's Avatar
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From: Everett, MA . USA
Car: 89 FORMULA FIREBIRD, 86 CHEVY CAMARO
Engine: L98, LB9 RESPECTIVLY
Transmission: 700 R4 (BOTH)
Before you go spending 200 bucks on a new maf, spend 25 for new maf power and burn relays and see if that solves the problem.
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Old Feb 17, 2006 | 06:00 PM
  #7  
CC89Formula's Avatar
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From: Amarillo TX
Car: 89 Formula
Engine: 5.7 TPI
Transmission: 700R4
im gonna borrow a friends MAF before i spend any money
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Old Feb 17, 2006 | 08:36 PM
  #8  
87TPI350KID's Avatar
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Car: 1987 IROC-Z Camaro
Engine: 5.7 350 TPI - SLP Runners, AFPR, MSD Goodies
Transmission: 700R4 - Shift Kit, Corvette Servo
Axle/Gears: BW 9 bolt, 3.27s
Originally posted by CC89Formula
im gonna borrow a friends MAF before i spend any money
How bout you replace your relays. They will prob. crap out soon anyway.
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Old Feb 18, 2006 | 04:22 PM
  #9  
CC89Formula's Avatar
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From: Amarillo TX
Car: 89 Formula
Engine: 5.7 TPI
Transmission: 700R4
cause im a college kid without any money right now...gotta take things one problem at a time
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Old Feb 18, 2006 | 05:25 PM
  #10  
89IrocZ350TPI's Avatar
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Originally posted by CC89Formula
cause im a college kid without any money right now...gotta take things one problem at a time

Just go pimp some of your women lol
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Old Feb 18, 2006 | 08:46 PM
  #11  
80Sierra's Avatar
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From: Alberta, Canada
Car: 80 GMC K35
Engine: TPI 355
Transmission: NV4500
Axle/Gears: 4.10
Can't replace the relays with a bosch style?

Cost you like 20 bucks total to re-do all the relays to a cube style relay from Bosch.

http://www.partsexpress.com/ has excellent prices, and very quick shipping
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Old Feb 18, 2006 | 10:55 PM
  #12  
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From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
"If it ain't broke, don't fix it."

Sinking money into something that's currently working is annoying- although yes, it may die in the future.
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Old Feb 18, 2006 | 10:55 PM
  #13  
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Originally posted by CC89Formula


i didnt think the car would run without the MAF either...granted, it runs like crap, but it runs.

My MAF went out on my 86 TA. It also ran with the MAF disconnected, as you say, not well, but it was enough to get to work and back a while until I got a used MAF off ebay.

TJ Baker
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Old Feb 18, 2006 | 11:12 PM
  #14  
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Originally posted by CC89Formula


i didnt think the car would run without the MAF either...granted, it runs like crap, but it runs.

My MAF went out on my 86 TA. It also ran with the MAF disconnected, as you say, not well, but it was enough to get to work and back a while until I got a used MAF off ebay.

TJ Baker
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Old Feb 18, 2006 | 11:57 PM
  #15  
87TAairlineyard's Avatar
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Posts: 154
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From: Whitehouse, Ohio
Car: 1987 Pontiac Trans Am
Engine: 305 LB9 Tuned Port Injection
Transmission: 700-R4 Automatic
Axle/Gears: Saginaw 10 bolt 2.73 posi
My friend and I were making some modifications to my air box and unplugged the MAF- when we reassembled it we forgot to plug it in. When I started the car, it died right away. The second time, it ran but through a Check Engine light. Car seemed to run fine without the MAF for the short time that I had it out. MAFs come on ebay occasionally, but you might be better off buying a new one if you have too.
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Old Feb 19, 2006 | 12:06 AM
  #16  
1989GTABlown632's Avatar
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Joined: Jan 2006
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From: PA
Car: 1989 Pontiac Firebird Trans-Am GTA
Engine: Blown 632 CID with Nitrous
Transmission: TH400
Axle/Gears: 4:10
I have an almost new MAF sensor email me if you intrested
Attached Thumbnails i think my MAF went bad-pc010169.jpg  
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Old Feb 20, 2006 | 01:00 AM
  #17  
CC89Formula's Avatar
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From: Amarillo TX
Car: 89 Formula
Engine: 5.7 TPI
Transmission: 700R4
i got one today its one with the computer chip thing in it rather than the wire, im told it will actually flow better than one with a wire. if thats true or not i dunno, but i got one for $50 and the guys gonna data log the car for me next weekend. so now i can set my timing and fuel pressure just right.
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Old Feb 21, 2006 | 10:16 AM
  #18  
scoob8000's Avatar
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From: pittsburgh, pa
Car: 95 Caprice
Engine: 5.7l LT1
Transmission: 4L60E
Axle/Gears: 2.93
If you can get the car idling with your bad? MAF. Tap on the housing with a screwdriver handle or similar. If it stalls you got a bad MAF..

IMHO the best solution is to borrow a friends MAF since it's an expensive part to take a stab at..
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Old Feb 21, 2006 | 03:05 PM
  #19  
CC89Formula's Avatar
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From: Amarillo TX
Car: 89 Formula
Engine: 5.7 TPI
Transmission: 700R4
no, it wouldnt idle with the bad MAF, but i got it replaced and its all good.
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