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Over boost fault code 000564

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What is fault code SA 16 DTC PO 4D900


Looks like could be caused by one of several sensors.
I did find thisP04D9 EGR feedback saturation This OBD monitor indicates if the burned air fraction error is saturated against a high or low limit. The logic for the monitor evaluates the time spent at saturation and compares the ratio between the time spent in a saturation mode and the total time engine running. A fault is reported whenever the ratio exceeds the fault limit.
P04D9 EGR system: Feedback control(Saturated Low)
Enable conditions: Engine torque 300 - 2500NM,Exhaust Mass Flow 0.1 kg/s, Ambient Air Temperature-8 -55C, Barometric Pressure 75 - 105 kpa, Coolant Temperature>65 C
Disable Conditions No active DTCs P0069 P046c P0234, P0299, P0401, and P0402
Some possible causes
P0069 Intake manifold pressure sensor evaluation
P046c EGR differential pressure sensor: DP Sensor rationality
P0234 Comparison of actual boost pressure, Overboost, to modeled boost pressure
P0299 Boost Pressure: Underboost, Comparison of actual boost pressure to modeled boost pressure
P0401 EGR system (low flow)compare demanded egr flow to actual
P0402 EGR System (High Flow)compare demanded egr flow to actual

Aug 20, 2017 | Cars & Trucks

1 Answer

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

Ford 6.4 diesel the boost gauge goes all way up when lightly accelerating but I'm not get power of 40 psi my power feels low/weak. On highway if I press pedal for 1-2. Seconds turbo boost is maxed!!!!


check for leaking boost hoses, cracked inlet tube, cracked intercooler
run the fault codes ( if applicable) could be a sensor that is not communicating the boost setting to the ecm to increase fuel to the injectors

Jan 19, 2017 | Ford Cars & Trucks

1 Answer

Code p2262


code p 2262 refers to turbocharger (TC) boost pressure not detected===causes -- mechanical fault
check for turbo hoses blown off , cracked/ split inter-cooler
boost dump valve stuck open
failed turbo unit

Oct 02, 2015 | Cars & Trucks

1 Answer

Obd2 code p1237 on honda civic diesel after engine malfunction light went off car goes into limp mode especially when engine is cold what does obd2 code p1237 mean what is the fault car runs ok then


DTC ) fault code ) - P1237:
Boost Control Positive Deviation

This fault code can be set when the fuel tank is empty or the specified fuel is not used. ( supermarket fuels etc have been known to cause this.. )

It can also be attributed to a turbo fault - if the fault is no turbo boost.

Jan 20, 2015 | Honda Cars & Trucks

1 Answer

Ford focus fault code p2263


code p 2263 refers to turbocharger (TC) boost pressure/supercharger (SC) boost pressure ---performance problems ===cause--- mechanical fault check for leaking interchange hoses , interchanger split or turbo failure

Oct 26, 2017 | 2004 Ford Focus

1 Answer

P00A B/1 Com1 ; p00P B/1 Com2


code p0045 refers to turbo/super charger boost control solenoid---circuit open causes ==wiring--boost control solenoid
p0046 refers to turbo/ super charger boost control solenoid--circuit range/ performance===causes ---wiring---boost control solenoid ---mechanical fault.
code refers to system voltage --low===causes wiring---poor connection---battery---alternator
it also refers to ECM power relay control--circuit open===causes -wiring --- ECM relay.
looks like 2 boost solenoids and I would ensure that the battery posts and terminals are shiny clean and tight. have a load test done on the battery to check for bad cell and check the alternator drive belt for condition and tension . Have an out put test done by an accredited auto electrician on the alternator

Dec 31, 2013 | 2008 Dodge Avenger

1 Answer

Steam cleaned engine now have po 237 fault code


Hi Carl, Seems you have some condensation in the turbo boost circuit. Have it blown out with compressed air and hope that it clears the fault. The fault code refers to low signal turbo boost control. It's not a good idea to have vehicles with electronic systems steam cleaned. Regards John

Dec 09, 2012 | Volkswagen Passat Cars & Trucks

1 Answer

What causes a P1300 boost calibration fault code in mazda rx8 1.3


my Mazda demio 2003 doesn't start it shows error codes p1300 undefined trouble code and p3302 boost calibration fault what does it mean need answers please

Nov 01, 2012 | Volkswagen Cars & Trucks

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

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