P0106 - MAP/BARO Range/Performance

MAP signal out of expected range or not correlating with engine load.

Code Overview

MAP signal out of expected range or not correlating with engine load.

Common Causes

• MAP sensor drifting or responding slowly
• Vacuum leak affecting manifold pressure
• Blocked MAP port or hose on older systems
• Restricted exhaust or engine mechanical problem

Symptoms

• Hesitation or flat acceleration
• Idle quality problems
• Poor power or reduced fuel economy

Diagnostic Steps

1. Compare MAP readings to key-on barometric pressure and live engine load
2. Inspect vacuum hoses and intake plumbing for leaks
3. Inspect the MAP port or hose for oil, carbon, or blockage
4. Check for exhaust restriction or other load-related faults if MAP data stays off

Repair Difficulty

Moderate

General difficulty estimate for the most common repair path.

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

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Next Steps

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