Intermittent maf problems ?
07-22-2017, 10:24 AM
#1
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Location: Rosenberg, Tx
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Car: 1986 IROC Z28
Engine: 305 TPI
Transmission: auto
Intermittent maf problems ?
Is it possible to have intermittent maf issues ? My 86 keeps throwing an ses light and always seems to be a 33 or 34 code but comes and goes. I always thought mafs were either good or bad, not "going out". I hate to go buy another one and the problem persists.
Thanks for any advice.
Thanks for any advice.
07-22-2017, 05:22 PM
#2
Re: Intermittent maf problems ?
Have you tried these tests ? Or is it too intermittent?
Sounds like a bad maf
http://www.chevythunder.com/maf_code_34.htm
Sounds like a bad maf
http://www.chevythunder.com/maf_code_34.htm
07-22-2017, 08:29 PM
#3
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Car: 1986 IROC Z28
Engine: 305 TPI
Transmission: auto
Re: Intermittent maf problems ?
Ive done that test but couldn't get repeatable results. It runs fine and no light, then I'll get a hiccup while driving and the light comes on. I reset the code and it's off for a while but always comes back.
07-22-2017, 09:11 PM
#4
Re: Intermittent maf problems ?
You might be able to find a good used Bosch maf in the classified section someone parting out a tpi car 86-89. I have seen good used ones go for aslittle as $50-60.
Ask this member 89irocz355
https://www.thirdgen.org/forums/member.php?u=37644
Ask this member 89irocz355
https://www.thirdgen.org/forums/member.php?u=37644
Last edited by Tuned Performance; 07-22-2017 at 09:18 PM.