GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Gs300 sputtering when I step on gas

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Old 10-27-21, 07:36 AM
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Dimitriru3
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Default Gs300 sputtering when I step on gas

My lexus gs300 is sputtering like a real bad misfire when I step on the throttle like a quarter way down and I already changed the coils wires plugs and the fuel pump but after I put the new fuel pump it doesn't wanna start.
Old 10-27-21, 07:59 AM
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Scigheras
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Are you getting fuel while cranking?
Old 10-29-21, 02:27 AM
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dwoods801
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What brand fuel pump did u install? Do u have a part number for it? How did it run before you installed the new one?
Old 11-02-21, 12:31 PM
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jettate
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I had similar issue, mine turned out to be air intake leak at resonator. Check air intake to eliminate that as a cause.
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