03 Chevy puge valve

Tiny
WOODYODA
  • MEMBER
  • 2003 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 204,000 MILES
03 chevy silvarado 5.3. Can the evap purge valve cause a lean mixture code? My truck has no egr valve. My guess is the purge valve took it place.
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Thursday, December 23rd, 2010 AT 1:47 AM

3 Replies

Tiny
RASMATAZ
  • MEMBER
Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
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Thursday, December 23rd, 2010 AT 2:01 AM
Tiny
WOODYODA
  • MEMBER
Thanks for the reply but my truck has no egr valve. Part of my question was does the evap purge valve serve the same purpose?
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Thursday, December 23rd, 2010 AT 2:11 AM
Tiny
RASMATAZ
  • MEMBER
Exhaust gas recirculation has nothing to do with fuel vapors
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Thursday, December 23rd, 2010 AT 10:52 AM

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