Corvette C4 Forum 1984 through 1996

'86 problem

Old Oct 2, 2006 | 11:01 PM
  #1  
rwolak's Avatar
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Default '86 problem

i've seen a number of threads on the MAF but i would like suggestions.

my '86 runs fine with the MAF unplugged. when i plug it in, the car won't idle at anything less than around 1400rpm. is this telling me the MAF is bad? or could it be something else?

tia
 
Old Oct 4, 2006 | 02:53 AM
  #2  
raisinbran's Avatar
Joined: Sep 2005
Posts: 406
Default RE: '86 problem

do u get any codes? i cant imagine the car running good with it unplugged
 
Old Oct 4, 2006 | 02:54 AM
  #3  
raisinbran's Avatar
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Posts: 406
Default RE: '86 problem

anyway you could get your hands on a working MAF to see if it makes your car run better?
 
Old Oct 4, 2006 | 09:36 AM
  #4  
mech259's Avatar
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Joined: Jan 2006
Posts: 1,858
From: Lumberton, Texas
Default RE: '86 problem

More than likely the MAF is bad. By unpluggung it, you are putting the ECM in a backup fuel mode where it uses a preprogrammed fuel curve to match throttle position. Several places make rebuilt MAF, namely anyone who carries A-1 Cardone. I have had bad rebuilt ones from them, so buyer beware. I had the same problem with my 86 and the rebuilt one I used just dumped fuel and gas fouled spark plugs. Ended up putting a new A/C Delco one in to the tune of $450.00. So good luck. [8D]
 
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