Back to 2005 Volvo S80

2005 VOLVO S80

2.9L I6AWDAUTOMATICgas
6 active safety recalls on this vehicle — view recalls
Repairs0Labor1186Torque7263Fluid15DTC1592Battery0Maintenance0Recalls6
P0109moderate severityPowertrain

MAP/BARO Pressure Circuit Intermittent

on 2005 Volvo S80 2.9L I6 · AWD

What this code means

The MAP sensor signal is showing intermittent readings.

Symptoms

  • Check Engine Light (intermittent)
  • Erratic idle
  • Stumble on acceleration

Common causes

  • Loose connector
  • Damaged wiring
  • Intermittent vacuum leak

Diagnostic steps

  1. Wiggle test on connector
  2. Monitor MAP signal
  3. Check vacuum hose

Repair notes

Repair connector or wiring.

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 →