Honda Error Code P1106: How to Fix It

Medium 30-60 minutes Low Severity Verified June 2026
Error Code
P1106
Brand
Honda
Product Type
automotive
Severity
Low
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Honda error code P1106 indicates a problem with the barometric pressure (BARO) circuit, which measures atmospheric pressure to help the engine control unit optimize fuel delivery and ignition timing. While this is typically a low-severity issue, it can cause poor fuel economy and rough idling if left unaddressed.
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Tools You'll Need

How to Fix Error Code P1106

  1. Turn off engine and ensure safety

    Never work on a hot engine. Wait for the engine to cool completely to avoid burns.
  2. Connect OBD2 scanner and confirm code

  3. Locate the MAP/BARO sensor

  4. Inspect electrical connections

    Disconnect the negative battery terminal before working with electrical connections to prevent short circuits.
  5. Clean electrical connections

  6. Check vacuum lines (if applicable)

  7. Test the MAP/BARO sensor

  8. Clear codes and test drive

  9. Replace MAP/BARO sensor if necessary

Parts You May Need

MAP/BARO sensor
Check Price on Amazon
Electrical contact cleaner
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MAP/BARO sensor
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
MAP/BARO sensor
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
MAP/BARO sensor
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
MAP/BARO sensor
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
MAP/BARO sensor
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
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When to Call a Professional

Contact a qualified mechanic if the sensor tests within normal ranges but the code persists, if you're uncomfortable working with electrical systems, or if additional codes appear that suggest more complex engine management issues.

Frequently Asked Questions

What causes Honda P1106 error code?
Honda P1106 is typically caused by a faulty MAP/BARO sensor, corroded electrical connections, damaged wiring, or vacuum leaks in vehicles with vacuum-referenced MAP sensors.
Can I drive with Honda P1106 code?
Yes, you can drive with P1106 as it's a low-severity code, but you may experience reduced fuel economy, rough idling, or poor performance. It's best to diagnose and fix the issue promptly.
How much does it cost to fix Honda P1106?
DIY repairs typically cost $50-150 for a new MAP sensor, plus $20-40 for cleaning supplies and vacuum hose if needed. Professional repair costs range from $150-300 including labor.
Will P1106 cause my Honda to fail emissions testing?
Yes, P1106 will likely cause your Honda to fail emissions testing since it's a stored diagnostic trouble code related to engine management and fuel delivery systems.