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Home >> Chevrolet >> 1995 >> Astro Van Cargo, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L >> Trouble Code Charts >> Code 45, Rich Exhaust Indication - All Models >> Fuel Pressure High
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Fuel Pressure High

If fuel pressure is too high, air/fuel ratio will be rich. For fuel pressure checking procedure, see BASIC TESTING - 4.3L article. The control module can compensate for slight increases but if air/fuel ratio becomes too rich a Code 45 will be set.

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