Back to 2004 Mazda MX-5 Miata

2004 MAZDA MX-5 MIATA

1.8L I4RWDMANUALgas
Repairs0Labor511Torque3649Fluid7DTC730Battery0Maintenance0Recalls0
P0106moderate severityPowertrain

MAP/BARO Pressure Circuit Range/Performance

on 2004 Mazda MX-5 Miata 1.8L I4 · RWD

What this code means

The MAP sensor reading is not changing appropriately with engine load changes.

Symptoms

  • Check Engine Light
  • Poor fuel economy
  • Hesitation
  • Stalling

Common causes

  • Vacuum leak
  • Clogged MAP sensor port
  • Faulty MAP sensor
  • EGR system issue

Diagnostic steps

  1. Monitor MAP reading at idle vs 2500 RPM
  2. Check for vacuum leaks
  3. Inspect MAP sensor port
  4. Test EGR system

Repair notes

Clean MAP port, repair vacuum leaks, or replace sensor.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →