2003 Chevy Tahoe Diagnostic Code

2003 CHEVROLET TAHOE
63,513 MILES • V8 • 4WD • AUTOMATIC
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2VHXTKBOLLINGER
  • MEMBER
  • 2 POSTS
Engine Light on and flashing. It is not the Gas cap.

Has a noticable miss, a few occassions has died while in park.

Receiving a P0174 Code, System to lean on bank 1 & 2

Getting several conflicting what to fix on this problem.

What is your oppinion?

Thanks
Jan 2, 2008 at 3:53 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Lean both banks? either a vacuum leak in the air intake or it needs a Mass Airflow Sensor. Any vacuum leak would have to be in a common area to both sides of the engine.
Jan 2, 2008 at 9:42 AM
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