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Does my car even have a MAF sensor?

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Old Jun 11, 2009 | 01:58 PM
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From: Winchester, VA
Car: 1991 Camaro RS/1989 Vert RS
Engine: 355/350
Transmission: T-5/T-5
Axle/Gears: BW9bolt3.45posi/3.23 Posi
Does my car even have a MAF sensor?

I am unsure whether or not my car has a MAF sensor. Can anyone show me where this is located? I thought if you have a MAP sensor you do not have a MAF sensor, well my car has a MAP sensor. 1989 Camaro RS Vert 350/T-5

Reason I ask is I got the code 33 thrown at me.
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Old Jun 11, 2009 | 02:27 PM
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Car: 87IROC, 740iBMW, 328iBMW, 86GMC
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Re: Does my car even have a MAF sensor?

Probably not if it's not a tune port intake system. More than likely a tbi throttle body (looks like a 2 barrell carb).
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Old Jun 11, 2009 | 04:19 PM
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Does my car even have a MAF sensor?

If its an '85-89 TPI, then yes it should have one. If its a '90-92 TPI or any year TBI or carb, then no it won't have it.

If you have the '85-89 TPI mentioned above, then it will be 'spliced' into the rubber intake duct somewhere between the air filter housing and the throttle body.
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Old Jun 11, 2009 | 04:38 PM
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From: Winchester, VA
Car: 1991 Camaro RS/1989 Vert RS
Engine: 355/350
Transmission: T-5/T-5
Axle/Gears: BW9bolt3.45posi/3.23 Posi
Re: Does my car even have a MAF sensor?

Alright, so it is a TBI so there for no. So why am I getting an error code saying that my MAF is failing?
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Old Jun 11, 2009 | 05:23 PM
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Re: Does my car even have a MAF sensor?

Originally Posted by JTNKTZ
Alright, so it is a TBI so there for no. So why am I getting an error code saying that my MAF is failing?
Are you sure you're looking at the correct error code list for your particular engine VIN?
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Old Jun 11, 2009 | 07:16 PM
  #6  
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From: Winchester, VA
Car: 1991 Camaro RS/1989 Vert RS
Engine: 355/350
Transmission: T-5/T-5
Axle/Gears: BW9bolt3.45posi/3.23 Posi
Re: Does my car even have a MAF sensor?

Originally Posted by paulo57509
Are you sure you're looking at the correct error code list for your particular engine VIN?

I thought so but maybe not... Where can I find the right one?
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Old Jun 11, 2009 | 08:06 PM
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Re: Does my car even have a MAF sensor?

if you have a 350 then you have tpi not tbi.
the maf sensor is located immediately behind the throttle body at the juncture with the plenum. it is a wire that has to get hot so that it can measure mass air flow.
hope i said that right.
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Old Jun 11, 2009 | 08:07 PM
  #8  
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From: Winchester, VA
Car: 1991 Camaro RS/1989 Vert RS
Engine: 355/350
Transmission: T-5/T-5
Axle/Gears: BW9bolt3.45posi/3.23 Posi
Re: Does my car even have a MAF sensor?

Originally Posted by tony_cogliandro
if you have a 350 then you have tpi not tbi.
the maf sensor is located immediately behind the throttle body at the juncture with the plenum. it is a wire that has to get hot so that it can measure mass air flow.
hope i said that right.
No, it's a 350 TBI.
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Old Jun 11, 2009 | 08:22 PM
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From: sunny so cal.
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: Does my car even have a MAF sensor?

then its not stock - and air had it right between the air cleaner and throttle body.
every 350 came with tpi - look here https://www.thirdgen.org/1989-chevy-camaro.
so someone has made some changes to your setup.
you got it right AIR i was wrong on the location. senior moment.
maybe that is why you are getting a maf error - its the original computer ecm - and its looking for one because the programing says too.
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Old Jun 12, 2009 | 01:56 AM
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Does my car even have a MAF sensor?

Originally Posted by tony_cogliandro
every 350 came with tpi
From GM yes, but that was 20 years ago... maybe the 305 was changed out for a 350 at some point? Doesn't matter anyway, as far as his problem goes.

If you have a TBI setup (looks like a 2bbl carb) then you would want to get a trouble code definition list for a 305 TBI of whatever year your car is. Some lists will combine definitions (ie. XX code - _____ for TPI, _____ for TBI) even though it may not actually say "for this motor"... it may just have two different definitions, and you have to decide which one 'matches' the car.
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Old Aug 28, 2010 | 01:39 PM
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Re: Does my car even have a MAF sensor?

i got a 92 camaro rs 3100 series motor, its throwing the error of the maf/map sensor but replaced the map and didnt fix anything. what could it be? when the clutch is engaged the rpms go up instead of down.
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