VW Jetta Wagon Check Engine Light

2009 VOLKSWAGEN JETTA
32,125 MILES • 4 CYL • 2WD
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LGEEKAY
  • MEMBER
  • 1 POST
I took my car to a local auto shop and he said that it's either of the 2:

1. manifold absolute pressure in barometric pressure circuit range or performance problem / code 16490
or
2. system too rich at Idle bank 1 / code 18620

My car is under 3 years old, and on a lease which is up in 3 months. Do you know if the dealer should cover this or if I should just get it repaired at an auto shop nearby?

Thank you,
Lisa
Jul 21, 2011 at 6:14 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Probable causes of an engine running rich are as follows:

1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
Jul 21, 2011 at 6:23 PM
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