2000 Honda Civic OBD 2 Trouble Codes

2000 HONDA CIVIC
93,300 MILES • 4 CYL • FWD • MANUAL
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CMEAND1
  • MEMBER
  • 8 POSTS
I recently got codes P0172 Generic System Too Rich Bank1, and P0170 Generic Fuel Trim Malfunction Bank 1. I was told that in was my o2 sensor and that I needed a change for every 90k miles. I have a SI which is engine b16a2 manual transmission. Please let me know what I can do to fix this problem
Jun 25, 2008 at 4:02 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode
Jun 25, 2008 at 11:36 PM
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