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However manufacturer may have a different definition for the P0400 OBD-II Diagnostic Powertrain (P) Trouble Code. The powertrain control module (PCM) determines how much based on engine load, temp, and other conditions. Enter the 5 character trouble codes in the search box and submit the search. The EGR valve is fairly simple when it is open exhaust gases are allowed through the EGR system to help control vehicle emissions, whereas when the valve is closed exhaust gases can’t pass through the EGR system. car running. The information contained on this site is presented for informational purposes only. A code P0400 Volvo may mean that one or more of the following has happened: Plugged EGR passage which restricts the flow of exhaust gasses Faulty EGR solenoid Faulty EGR solenoid wiring/harness Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve Faulty EGR valve, Volvo P0394 Camshaft Position Sensor B Circuit Intermittent Bank 2, Volvo P0401 Exhaust Gas Recirculation Flow Insufficient Detected. When you check Volvo V50 car engine light came on code U1900 the reason should be Engine Light ON (or Service Engine Soon Warning Light). This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. OBD-II Diagnostic Powertrain (P) Trouble Code For Engine, Intake Valve Control Solenoid Circuit Low, Shift Solenoid E Performance or Stuck Off. Your gas mileage will also be terrible, so you should try and fix it as The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. OBD2 Code P0400 Volvo definition: The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. Possible sumptoms of OBD code P0400 Volvo No symptoms will likely be noticed by the driver other than the MIL (malfunction indicator lamp). However, non visible symptoms will be increased combustion temperature and increased Nox emissions. The OBD2 Code Information Be Applicable For Volvo: 2013 Volvo V40,2012 Volvo XC60,2011 Volvo XC90,2011 Volvo V60,2011 Volvo S60,2011 Volvo C30,2010 Volvo S80L,2010 Volvo S80,2010 Volvo C70,2010 Volvo C30,2009 Volvo XC60,2009 Volvo V50,2009 Volvo S60,2009 Volvo S40,2009 Volvo C30,2008 Volvo XC70,2008 Volvo V70,2008 Volvo V50,2008 Volvo S40,2007 Volvo … Unfortunately, the average replacement cost is around $2,000 and you In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. The currently selected ODB-ii codes is for the Volvo makes. Parts or components should not be replaced with reference to only a U1900 DTC. Look up the other OBD II Trouble Codes, please use the search box. Volvo V50 U1900 Possible Solution : The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. 2. We are not responsible for any actions you take on your vehicle. Volvo help, forum + news for all models. However manufacturer may have a different definition for the U1900 OBD-II Diagnostic Network (U) Trouble Code. If the engine stumbles, the problem was likely intermittent wiring problem or intermittent blockage problem If engine doesn’t stumble, operate the EGR valve manually, if possible. Sometimes you may notice a flat spot, or the vehicle may enter limp mode or show a EML light. But in many cases, it means at … If your OBD-II trouble codes are for a different car, select that vehicle series before searching for the diagnostic codes because not all OBD2 codes used by one manufacture are used by the other makes. Possible causes of OBD code P0400 Volvo A code P0400 Volvo may mean that one or more of the following has happened: Plugged EGR passage which restricts the flow of exhaust gasses Faulty EGR solenoid Faulty EGR solenoid wiring/harness Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve Faulty EGR valve, Since EGR valve designs are different, no one test will suffice: Using a scan tool, operate the EGR valve with the engine running. Removal of valve and cleaning of all ports will be required Checking of solenoid can only usually be done with a scan tool, because most solenoids operate with a duty cycle of voltage, rather than constant voltage Check all vacuum lines, hoses, etc for any damage Visually inspect the solenoid harness and the solenoid for damage Replace EGR valve, 2013 Volvo V40,2012 Volvo XC60,2011 Volvo XC90,2011 Volvo V60,2011 Volvo S60,2011 Volvo C30,2010 Volvo S80L,2010 Volvo S80,2010 Volvo C70,2010 Volvo C30,2009 Volvo XC60,2009 Volvo V50,2009 Volvo S60,2009 Volvo S40,2009 Volvo C30,2008 Volvo XC70,2008 Volvo V70,2008 Volvo V50,2008 Volvo S40,2007 Volvo V70,2007 Volvo S80,2007 Volvo S60,2007 Volvo C70,2007 Volvo C30,2006 Volvo XC90,2006 Volvo S80,2006 Volvo C70,2005 Volvo V50,2005 Volvo S60,2004 Volvo XC90,2004 Volvo V70,2004 Volvo V50,2004 Volvo V40,2004 Volvo S40,2003 Volvo V70 R,2003 Volvo S80,2003 Volvo S60 R. 1. Home; Problems & Fixes. Please fill the "Code Box" to find engine fault code. The list of automotive Makes at the right edge of the screen. can't do it yourself unless you're an experienced mechanic. When you check Volvo P1800 car engine light came on code P0400 the reason should be Engine Light ON (or Service Engine Soon Warning Light). When your car's 'Volvo P1800 P0400 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. Founded 2001, we've helped over 10 million Volvo owners. Possible sumptoms of OBD code P0400 Volvo. Volvo V50 U1900 if your catalytic convertor fails completely, you eventually won't be able to keep the If engine doesn’t stumble and die, the ports are likely plugged. Volvo help, forum & news for all models. If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set.

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