1991 Honda Accord Diagnostic Code Help

1991 HONDA ACCORD
230,000 MILES • 4 CYL • FWD • AUTOMATIC
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COLFRBN2001
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  • 1 POST
I received a diagnostic code of 4 long blinks followed by 1 short blink. I'm interpreting this as "Code 41 Heated oxygen sensor heater." What does this mean and where should I start?
Jun 15, 2010 at 11:45 AM
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HONDA TECH 1818
  • ✓Experienced Mechanic
  • 536 POSTS
Code 41 means there is a problem in the Heated Oxygen Sensor (H02S) Heater circuit. You have to replace the 02 sensor.
Jun 18, 2010 at 4:58 PM
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