Trouble code
P0106
MAP / Barometric Pressure Circuit Range / Performance
What P0106 means
The manifold absolute pressure signal does not agree with the other engine sensors.
Symptoms you may notice
- Rough idle
- Hesitation
- Poor economy
- Black smoke
Common causes, cheapest first
- Failed MAP sensor
- Blocked or cracked vacuum hose to the sensor
- Vacuum leak
- Carbon in the sensor port
Before you buy anythingCheck the small vacuum hose feeding the sensor. They perish and crack with heat, and the replacement costs a few dollars.
What to do next
- Confirm the code with your own scan tool, or have it read free at a chain parts store.
- Decode your VIN so you know your exact engine and build date.
- Work down the causes above from cheapest to most expensive.
- Search NHTSA for a recall or service bulletin covering this symptom on your vehicle.
- Read the engine buying guide before ordering.
P0106 is a generic OBD-II code, standardized across every make and model sold in the US from 1996 onward. The meaning is the same on any vehicle; the specific part and its location are not.
Parts
Parts commonly needed for P0106
These go to Amazon. We earn a commission if you buy, at no extra cost to you — see our affiliate disclosure. Which one you actually need depends on diagnosis — read the note above first.
Confirm fitment against your VIN on the listing page before ordering. A part that matches your year and model can still be wrong for your build date or engine code.