P0106
Medium SeverityMAP/BARO Sensor Circuit Range/Performance
Fuel System
What Does P0106 Mean?
The MAP (Manifold Absolute Pressure) sensor is reading outside normal range. Affects fuel delivery and ignition timing calculations.
Common Fix
Replace MAP sensor or fix vacuum leak
Estimated Cost (DIY)
$20 - $80
Common Causes
How to Diagnose P0106
- 1Check vacuum hose to MAP sensor
- 2Clean MAP sensor port
- 3Test MAP sensor output with scan tool
- 4Check for vacuum leaks
OEM Diagnostic Flowchart
Scroll to load technician if/then branches.
Read live data and freeze frame for P0106 to pinpoint the cause before buying parts.
Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0106.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...
Related Symptoms
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Browse →Open the exact vehicle hub grounded by OEM manual evidence related to P0106.
Open the exact vehicle hub grounded by OEM manual evidence related to P0106.
Open the exact vehicle hub grounded by OEM manual evidence related to P0106.
Open the exact vehicle hub grounded by OEM manual evidence related to P0106.
Related Codes
MAP sensor voltage is below the expected minimum. The ECM sees this as extremely high vacuum, causing incorrect fuel calculations.
MAP sensor voltage is higher than maximum expected range. The ECM reads this as very low vacuum.
The engine is running lean on bank 1 — too much air or not enough fuel. The ECM has maxed out its fuel trim trying to compensate. Common causes include vacuum leaks and dirty MAF sensors.
Frequently Asked Questions
- What is a MAP sensor?
- The MAP sensor measures intake manifold vacuum to help the ECM calculate fuel injection and ignition timing.
- Can I clean a MAP sensor?
- Yes, you can clean the sensor port with electronics cleaner. A clogged port is a common cause of P0106.

