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Home >> Lexus >> 1994 >> ES 300 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - OBD-II >> Trouble Code Charts >> Code P0171 & P0172 - Fuel Trim >> Notes

Code P0171 & P0172 - Fuel Trim: Notes

CODE P0171 - SYSTEM TOO LEAN (FUEL TRIM)
CODE P0172 - SYSTEM TOO RICH (FUEL TRIM)

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