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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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power loss and back fire at hard trottle

  • Thread starter Thread starter blk8950
  • Start date Start date Apr 26, 2008
B

blk8950

New Member
Mar 28, 2008
3
0
0
Apr 26, 2008
#1
  • Apr 26, 2008
  • #1
i have a 89 gt with 75 mm 24 lb mass air meter 24 lb injectors bbk ssi intake bbk 75 mm trottle body 14 degree timing and 40 lb of fuel pressure if i barly give it trottle it runs great but if i give it half trottle of more it falls on its face and starts pinging and backfiring like it isn't getting fuel with the spark it also has a msd and a dyna mod distributor
i didn't have this problem until i tryed to advance the timing and my engine light comes on right when i start my car after i reset the computer im thinking maybe a map sensor but my hands are up in the air please help
 

82CapriRS

New Member
Dec 3, 2004
54
1
0
New Jersey
Apr 27, 2008
#2
  • Apr 27, 2008
  • #2
you sure its set at 14 now? what was it set at before you changed it? did you pull the lil plug by the distributor before you changed the timing?
 
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