sudden increase in fuel consumption

1997 ISUZU TROOPER
50,000 MILES • 3.5L • V6 • 4WD • AUTOMATIC
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SHENI TIM
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My car was doing fine after I changed the plugs and catalytic converter. The consumption went pretty okay. Then I took it for fuel pump change and since then the consumption has suddenly increased. Please help
Nov 29, 2016 at 10:52 AM
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HMAC300
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scan for codes and check fuel pressure with a gauge auto parts rent it . See link.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Nov 29, 2016 at 12:10 PM