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Low mpg

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Old Mar 23, 2023 | 04:54 PM
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  #31  
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98 Blazer
4wd 4.3L

Still getting 10 mg, not complaining. Replaced my O2 sensors. Checked my PCV valve, shakes around alot inside, so I think its good. Replaced fuel filter, checked fuel trim. Checked spark plugs. What can I try next? Maf sensor? Fuel pressure?
 
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Old Mar 23, 2023 | 05:28 PM
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  1. Compression test
  2. MAF reading at the 1-2 full throttle shift point
  3. Make sure your engine temp is above 190F
  4. Post your fuel trims

George
 
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Old Mar 26, 2023 | 12:11 PM
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1998 blazer lt 4door 4 wd. How long to clean maf and egr? Pictures of them?
 
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Bad gas mileage, any ideas?




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