Replace MAP sensor on a volvo xc90 3.2 engine Topic is solved

[lincolnshibuya]

Anybody replaced this MAP sensor on a 3.2 IL engine? It looks like it just needs a twist and pull?
I have a code P0107 and when I test it out with live data from my scanner, the pressure always remain the same even at full throttle/high rpm. It was disconnected/loose before and giving me P0105, a wiggle test proved that it was loose but still non-operational. Planning on replacing it or needs a cleaning.

[RickHaleParker]

ECM-P010500 Manifold Absolute Pressure/BARO Circuit. General Failure Information.

Diagnostic trouble code (DTC) information ECM-P010500

Condition
The engine control module (ECM) measures the pressure in the intake manifold using an air pressure sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that:
The direct voltage is higher than 4.951 V.
Incorrect value lasts longer than 9 seconds.
Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
Ignition switch position II.
Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Substitute value
The control module uses a constant air pressure in the inlet manifold.

Possible source

• Open-circuit in signal cable or ground lead.
  Contact resistance and oxidation in the terminals.
  Short-circuit to supply voltage in the signal cable.
  Damaged air pressure sensor in the inlet manifold.

Fault symptoms
Malfunction indicator light (MIL), on

MAP_3.2.jpg (40.19 KiB) Viewed 14227 times

[lincolnshibuya]

Just replaced the MAP sensor and code goes away. The old sensor is indeed broken. It's a very quick fix since you don't need to remove the intake manifold to replace the part. Just remove the connector, it was easy for me since the person who last disconnected this broke the securing clips (have no idea on how to disconnect the clips) and twist it just like in the picture above and pull out. I got the SMP brand part from Rock Auto for $70 including shipping, I was expecting SMP to be made in USA but RockAuto is mostly chinesium parts now.



next on my TODO list: Fuel Pressure Sensor replacement.

[sailorbob74133]

I replaced the MAP sensor with a new one and the PCM is still showing a code and the the sensor just shows constant max pressure on the live data.

When testing voltage, KOEO, I get 5v on the Green/Brown ref wire, and ~4.9 on the Purple/White signal wire. I get these values both plugged in and unplugged. When I start the engine, the signal wire goes up to 5v.

I'm guessing the signal wire is shorted somewhere, but it's not clear if the signal wire is supposed to be 0v or 5v unplugged, KOEO.

Does anyone know? As a side, a few errors all appeared simultaneously, the MAP code, a fuel rail pressure sensor code, and a TCM code for Engine Torque Signal.

[soundhertz]

I replaced the MAP sensor with a new one and the PCM is still showing a code and the the sensor just shows constant max pressure on the live data.

When testing voltage, KOEO, I get 5v on the Green/Brown ref wire, and ~4.9 on the Purple/White signal wire. I get these values both plugged in and unplugged. When I start the engine, the signal wire goes up to 5v.

I'm guessing the signal wire is shorted somewhere, but it's not clear if the signal wire is supposed to be 0v or 5v unplugged, KOEO.

Does anyone know? As a side, a few errors all appeared simultaneously, the MAP code, a fuel rail pressure sensor code, and a TCM code for Engine Torque Signal.

Hi Sailorbob. Same boat though I replaced the plug too. Did you find anything elsewhere since you last posted? I'm going to try to reseat the manifold gaskets and hope for the best.

[ctramme9]

Hi, I tried to replace the MAP sensor and could NOT get it out. I turned and pulled... NO LUCK... Didn't want to break it, so I stopped