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GMC TSB #PIP3330D
2004 GMC Envoy
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- This Preliminary Information Document advises the dealer that there is a software update available for the Powertrain Control Module to address diagnostic trouble code P0171. If the software update does not correct the condition, the dociment directs the dealer to related technical servce bulletins that cover cleaning fuel injectors and addressing fuel quality.
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