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Boost pressure sensor fault - 2001 Volvo S60

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Fault codes P0236 and P0046 keep coming up on my freelander1 td4 2004


P0236 = Possible causes are

1. Boost pressure sensor harness is open or shorted
2. Boost pressure sensor circuit poor electrical connection
3. Faulty boost pressure sensor
4. Faulty Turbo/Super Charger
5. Engine over temperature
6. Ignition misfire exceeds the threshold
7. Faulty Knock sensor (KS)

P0046 = Turbo/Super Charger Boost Control Solenoid Circuit Range/Performance

.... based on this information I would replace the turbo boost control solenoid first.

May 02, 2017 | Land Rover Freelander Cars & Trucks

1 Answer

How to remove and replace boost pressure sensor, I realy want to know I want to replace mine.


Removal procedure
1.Disconnect harness assembly[1] from boost pressure sensor[2]
2.remove bolts[3] from boost pressure sensor [2]
3.Remove boost pressure sensor [2] from inlet manifold[5]
4.Remove O-ring seal [5]
Installation procedure:
1.Clean and replace worn out components.
2.Install a new O-ring 5 to boost pressure sensor [2]
3.Install boost pressure sensor [2] to to inlet manifold [5]
4.Install bolts[3] to to pressure sensor [2] finger tight.
5.Connect harness assembly[1] to boost pressure sensor[2]

Jul 23, 2016 | Cars & Trucks

1 Answer

Mapping codes P0107, P2263 & P2227 come up on scan tool what are these codes relating too? Ford Ranger 2008 not 2004 3.0 4 door


code p 0107 refers to manifold absolute pressure (MAP) sensor /barometric pressure (BARO) sensor --low input ====causes --wiring short to ground ---MAP sensor ---BARO sensor ---ECM
code p 2263 refers to turbo charger (TC) boost pressure /supercharger (SC) boost pressure ---performance problem====causes --mechanical fault
code p 2227 refers to BARO sensor -range / performance problem===causes wiring --- BARO sensor --- ECM
I would be testing the BARO sensor for a problem as it is listed for all 3 codes
if you don't have such a sensor you have a MAP sensor which is reading in the same area so test that as well

Oct 19, 2015 | 2004 Ford Ranger

1 Answer

Mercedes sprinter limp home fault


You dont have a MAP sensor on this model ? how can you have only 600 millibar 980 to 1026 is an approximate range of normal atmospheric pressure regardless of engine conditions what part did you swap and did you reset the adaption data for the component ?

Jul 08, 2013 | 2010 Mercedes-Benz Sprinter

1 Answer

Smart car keeps cutting out whilst driving


If all power is lost in the car, it could indicate a bad battery connection, bad wiring, or loose main wire harness, etc.

If a warning light comes on - it may be going in to Safe Mode.

Safe mode is the set of parameters that the car will use if it believes there
is a fault with the engine that could cause irrepairable or long term damage.

Generally it is an excess in expected boost pressure entering the engine.
This excess boost from the turbo tends to happen for 4 reasons.

The boost pressure sensor (MAP sensor) is faulty.
The wastegate is seized shut or slightly open.
The wastegate actuator is faulty.
The air line to the wastegate actuator is damaged or off.

Obviously, if the sensor is faulty, it will tell the ECU lies about the boost pressure.
If the wastegate assembly fails in any way it will fail to open to bypass the turbo.
The turbo will continue to spin up, increasing the boost pressure, causing the fault.

Initially I would suggest disconnecting the battery for 5 minutes (make sure you know your
radio code before doing this), this will turn safe mode off and your car should run normally
again. Drive home with a bit of care, you may find the car might never do it again. If it does
go into safe mode again, you know you have a real problem and not just a glitch.

Best to contact your dealer and have it checked out.

Nov 03, 2011 | Smart fortwo Cars & Trucks

1 Answer

PO 722 1238 137 1618 1132


1132-This Relates to Heated oxygen sensor (H02S) 1, bank 1/heated oxygen sensor (H02S) 2, bank 1 - signal incompatibility
1618-This Relates to Cable fault between AW 50-Q2 TCM and Motronic 4.4 ECM (lamp lights)
1238-This Relates to Turbocharger (TC) boost pressure sensor - boost control malfunction
0137-This Relates to Bank 1, Sensor 2 - Circuit Low Voltage for O2
0722-This Relates to No Signal in Output Shaft Speed Sensor Circuit

Mar 30, 2011 | 2000 Volvo V70

1 Answer

Codes 1132, 1238, and 1618


All are P codes
1132-This Relates to Heated oxygen sensor (H02S) 1, bank 1/heated oxygen sensor (H02S) 2, bank 1 - signal incompatibility
1238-This Relates to Turbocharger (TC) boost pressure sensor - boost control malfunction
1618-This Relates to Cable fault between AW 50-Q2 TCM and Motronic 4.4 ECM (lamp lights)

Mar 30, 2011 | 2000 Volvo V70

1 Answer

Smoking Vehicle After servicing.


Ther first code ECM-6805 TURBOCHARGER (TC) CONTROL VALVE DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION If engine speed (RPM) is above 3500 rpm and the engine is operating at a high load, and if the boost pressure (from the boost pressure sensor) is higher than a designated value, which at maximum boost pressure is approximately 20kPa (2.9psi) above normal boost pressure, this is interpreted as a fault and diagnostic trouble code (DTC) ECM-6805 is stored. Condition reduced boost pressure Possible source * hoses between turbocharger (TC) and turbocharger (TC) control valve respectively turbocharger (TC) control valve and pressure servo are loose or are blocked/damaged * faulty turbocharger (TC) control valve * faulty boost pressure control (BPC) valve pressure servo * sticking boost pressure control (BPC) valve Condition * none ECM-6805 TURBOCHARGER (TC) CONTROL VALVE PRESSURE TOO HIGH - PERMANENT/INTERMITTENT FAULT Checking the hoses and turbocharger (TC) control valve Check that the hoses between the intake manifold, pressure regulator and turbocharger (TC) control valve are not trapped, blocked or damaged. Check the turbocharger (TC) control valve by activating it. Check the alignment of the boost pressure control (BPC) valve pressure servo and the boost pressure control (BPC) valve and that they are functioning correctly and not sticking according to See: Component Tests and General Diagnostics\Boost Pressure Regulator, Checking/Adjusting Verification Hint: After carrying out the repair, check that the fault has been remedied. * Ignition off. * Reinstall connectors, components etc. * Disconnect the VCT 2000 from the data link connector (DLC). * Test drive the car and check that high boost pressure is obtained. * Connect the VCT 2000 to the data link connector (DLC). NOTE: Do not switch off the ignition before the VCT 2000 has been connected and the boost pressure has been tested with the smart tool. Read the boost pressure fault status When the boost pressure has been tested the display should show that the diagnostic is complete. the second code Symptoms You will likely not notice any serious drivability problems, although there may be symptoms. Possible Solutions The simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures: Inspect for the following conditions: An incorrectly routed harness--Inspect the harness of the MAF sensor in order to verify that it is not routed too close to the following components: - The secondary ignition wires or coils - Any solenoids - Any relays - Any motors A low minimum air rate through the sensor bore may cause this DTC to set at idle or during deceleration. Inspect for any vacuum leaks downstream of the MAF sensor. A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor g/s display on the scan tool to increase rapidly. This increase should be from 6-12 g/s at idle to 230 g/s or more at the time of the 1-2 shift. If the increase is not observed, inspect for a restriction in the induction system or the exhaust system. The barometric pressure (BARO) that is used in order to calculate the predicted MAF value is initially based on the MAP sensor at key ON. When the engine is running the MAP sensor value is continually updated near WOT. A skewed MAP sensor will cause the calculated MAF value to be inaccurate. The value shown for the MAP sensor display varies with the altitude. With the ignition ON and the engine OFF, 103 kPa is the approximate value near sea level. This value will decrease by approximately 3 kPa for every 305 meters (1,000 feet) of altitude. A high resistance on the ground circuit of the MAP sensor can cause this DTC to set. Any loss of vacuum to the MAP sensor can cause this DTC to set. the third code O2 sensor failure may not be displayed appropriatly

Jun 08, 2009 | 1997 Volkswagen Jetta

1 Answer

RPM Oscillating


have you had the vehicle speed control reprogrammed if not that could be your problem

Jun 26, 2008 | 2005 Dodge Ram 3500

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