my 94 s15 jimmy to much gas

1994 GMC S15
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MASONCLINGER71
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  • 2 POSTS
its a 94 s15 jimmy 4x4 4.3 vortech with 175000 miles on it I had it for one year I put a new fule pump,filter,new flowmaster exaust with no cat on it ,new injector,new sending unit break booster, I was getting 360 miles to a tank now I am getting 270 to 280 to a tank no engine lights are on the only thing I have not done is plugs,cap,botton,any ideas would be helpfull thanks
Nov 9, 2007 at 11:22 PM
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CHEVY22
  • ✓Experienced Mechanic
  • 1,375 POSTS
i would do the tune up if it needs it and check the fuel pressure , regulators are common cause if you havent done that already

jim
Nov 10, 2007 at 2:23 AM
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MASONCLINGER71
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  • 2 POSTS
checked that yesterday thanks
Nov 10, 2007 at 2:40 AM
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