2006 gmc engine lite is on code said lean on right and left sides. Replaced plugs, wires, intake gaskets. Checked o2 sensors. One was bad the other ones check good. What can I check next.

5

Asked by Oct 14, 2013 at 03:38 AM about the 2006 GMC Sierra 1500HD SLE1 4dr Crew Cab 4WD SB

Question type: Maintenance & Repair

Engines running ruff

2 Answers

257,495

What codes did you get? P0171 & P0174?

5

P0101, p0171,p0174,p0300

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