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Chevrolet
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2003
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Impala LS
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Engine Controls - Service & Adjustment Specifications
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Fuel Systems
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Fuel Pump
Fuel Pump
FUEL PUMP PERFORMANCE
Application
(1)
KOEO psi (kPa)
3.1L & 3.4L
52-59 (359-407)
3.8L
VIN K
(2)
53-59 (365-407)
VIN 1
(2)
48-54 (331-372)
(1)
KOEO is ignition key ON and engine OFF.
(2)
Eighth VIN character.