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For 1990-2009 cars only

Malfunction Indicator Lamp (MIL) On, Lean and/or Rich Fuel System DTC(s) P0171, P0172, P0174, P0175 Set on E85 Flexible Fuel 5.3L VIN Z - RPO L59 Engine (Reprogram PCM)

Subject:Malfunction Indicator Lamp (MIL) On, Lean and/or Rich Fuel System DTC(s) P0171, P0172, P0174, P0175 Set on E85 Flexible Fuel 5.3L VIN Z - RPO L59 Engine (Reprogram PCM)

Models:2006 Chevrolet and GMC Light Duty Trucks
with 5.3L E85 Engine Flexible Fuel (Gas/Alc) (VIN Z -- RPO L59)



This bulletin is being issued to cancel Corporate Bulletin Number 06-06-04-005. Please discard Corporate Bulletin Number 06-06-04-005 (Section 06 - Engine).


Technicians should refer to Corporate Bulletin Number 06-06-04-010C for further information on vehicles exhibiting the above conditions.