2004 Honda CRV Check engine light / 02 Sensor

2004 HONDA CRV
110,000 MILES • 4 CYL • 4WD • AUTOMATIC
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VAZ222
  • MEMBER
  • 1 POST
Check engine light diagnosed by mechanic. Advised it needs a new oxygen sensor and wants $400 for the job. I looked online and found it for $198. The problem is that there appears to be TWO oxygen sensors in this vehicle (vin#SHSRD78444U232189).

How do I know which one to buy, as I will be installing it myself.

Thank you VERY much!

Vaz222@aol.com
Jul 19, 2008 at 2:12 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
The code will tell you! Bank one sensor 1 or 2...1 is before the converter, 2 is after, one deos most of the switching and is usually the one...these are made to last 100,000 miles, you are past that, wouldn't hurt to replace em both!
Jul 19, 2008 at 2:40 AM
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