TorqueMech OBD Code Guide
P0106 - MAP/BARO Range/Performance
MAP signal out of expected range or not correlating with engine load.
Code first. Confirm symptoms and checks before pricing parts.
Read code pattern
Check likely system
Estimate after confirmation
Common Next Steps
Turn the code into the next check.
Review fuel trims
Compare trims at idle, 2500 RPM, and cruise before pricing sensors.
Inspect vacuum leaks
Check intake boots, PCV hoses, and post-MAF leak paths.
Check MAF sensor
Inspect MAF contamination and airflow data after intake leaks are considered.
Inspect intake tubing
Look for cracked ducts, loose clamps, and unmetered air after the MAF.
Related Inspection
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
- Compare MAP readings to key-on barometric pressure and live engine load
- Inspect vacuum hoses and intake plumbing for leaks
- Inspect the MAP port or hose for oil, carbon, or blockage
- 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.
Related OBD Codes
Browse nearby codes when systems overlap.
Next Steps
Move from code to checks, then estimate.