Maybe a MAF issue?

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bluize3
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Year and Trim: 2002 SLE 3.8 non supercharged

Maybe a MAF issue?

Post by bluize3 »

Does anyone out there know what the resistance is supposed to be on the MAF and which leads to test from on the plug ? I think mine is bad too and trying not to put out the 130 dollars for a new one without knowing for sure that is the problem. I cleaned mine very well and no luck. I have the code but not the running problems that were reported here.... Ill look online for a cheaper one if i have too. $130 bucks is a lot to pay for a part that can't be returned once installed.

By the way, I am new to this great forum ! I have seen alot of reliable solutions out there and commend all you experts out there willing to help the DIYer ! =D>

2002 Bonneville SLE 3.8 not Super Charged
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J Wikoff
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Re: Maybe a MAF issue?

Post by J Wikoff »

No drivability issues?
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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
bluize3
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Year and Trim: 2002 SLE 3.8 non supercharged

Re: Maybe a MAF issue?

Post by bluize3 »

Not any real bad ones. Maybe a hard start once in a while and a little bit of hesitation when its cold. I have cleaned the MAF twice, cleared the code and keeps coming back.
Found one online for $40 cheap enough to replace it. Much better than $140 that Oreilly's was selling them for.....i just hate changing parts and hoping for the best. I like testing and seeing results.
mrwildroot
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Re: Maybe a MAF issue?

Post by mrwildroot »

I've often read in this forum that you may be better off buying a used MAF OEM sensor, than a new one.
Never buy Bosch.

Guess I was fortunate: Cleaning thoroughly worked for me.

Good luck,

MW
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J Wikoff
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Re: Maybe a MAF issue?

Post by J Wikoff »

How did you clean it? You have to be gentle and use appropriate solvents.
Image
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
mrwildroot
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Re: Maybe a MAF issue?

Post by mrwildroot »

J Wikoff wrote:How did you clean it? You have to be gentle and use appropriate solvents.
Bought a can of MAF spray at NAPA, and sprayed the entire device, especially the electrodes, which were black/brown. Took about 18 good sprays to get shiny chrome. Sprayed in back of them well.
Had Q-tips standing by, but didn't use/need them with multiple sprays doing the job effectively.

Incredible the difference before and after!!!

After cleaning and refreshing my K&N filter, I put about 2,000 miles on, and then pulled the MAF again to check it for oil/dirt/grime, but found it still nice and shiny. Sprayed it again just for good measure, but it really didn't need it. 10 mins for the entire procedure.

MW
Abbby
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Re: Maybe a MAF issue?

Post by Abbby »

I have bought 2 of these for my Bonnevilles on Amazon for $99 each. Worked without issue.

Delphi AF10126 Mass Air Flow Sensor
redzmonte
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Re: Maybe a MAF issue?

Post by redzmonte »

What code are you getting?
Shane "RedZMonte"
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