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Home >> GMC >> 1994 >> Forward Control 4.3 Z, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.7L >> Trouble Code Charts >> Code 45, Rich Exhaust Indication >> Fuel Canister
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Fuel Canister

Charcoal canister fuel saturation will cause a rich air/fuel ratio. If full of fuel, check canister control and hoses.

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