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P0171 Hummer -

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Getting a 171 and 441 code error are they related Ron

Vehicle: 2006 H3 Hummer

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P0171Fuel trim lean

P0441 Evaporative emission control system incorrect purge flow detected

Yes it is you only have 1 code condition the Purge control is causing P0171. There has been upgrade for the purge solenoids that have cause P0171 and the EVAP code conditions the solution is to replace the purge solenoid

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