Home; Problems & Fixes.

The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. When your car's 'Volvo P1800 P0400 Check Engine' light comes on, it's usually accompanied by a sinking feeling DIYs, recalls and advice. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. in the pit of your stomach.

So you should chech it on our car models. But in many cases, it means at …

The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. If engine doesn’t stumble and die, the ports are likely plugged. If one of these reasons for U1900 code is occuring now you should check U1900 repair processes.

can't do it yourself unless you're an experienced mechanic. 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). Look up the other OBD II Trouble Codes, please use the search box. OBD-II Trouble Code Description for P0400 Volvo. Don’t assume a particular OBD-II code means the same for other auto manufacturers as there are many makes specific codes in use. We are not responsible for any actions you take on your vehicle. 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.

Possible sumptoms of OBD code P0400 Volvo No symptoms will likely be noticed by the driver other than the MIL (malfunction indicator lamp). But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

Parts or components should not be replaced with reference to only a P0400 DTC. Please fill the "Code Box" to find engine fault code. Volvo V50 U1900 if your catalytic convertor fails completely, you eventually won't be able to keep the Please fill the "Code Box" to find engine fault code. Volvo help, forum + news for all models. So you should chech it on our car models. Sometimes you may notice a flat spot, or the vehicle may enter limp mode or show a EML light.

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. A Good Valve Gone Bad If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set. 2. 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. The information contained on this site is presented for informational purposes only. Your gas mileage will also be terrible, so you should try and fix it as If one of these reasons for P0400 code is occuring now you should check P0400 repair processes.

P0400 Volvo P0402 Volvo P0403 Volvo . 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.

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.

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. 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. The powertrain control module (PCM) determines how much based on engine load, temp, and other conditions.

The list of automotive Makes at the right edge of the screen. If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set. The currently selected ODB-ii codes is for the Volvo makes. The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. 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. or it could be something minor, like a loose gas cap. Founded 2001, we've helped over 10 million Volvo owners.

Parts or components should not be replaced with reference to only a U1900 DTC. The light could mean a costly problem, like a bad catalytic converter, 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. Volvo help, forum + news for all models. Error Code P0401, which shows up in cars like the Chevrolet Volt, has become infamous for alerting mechanics to a poorly functioning exhaust gas recirculation (EGR) system.

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 V50 U1900 Possible Solution : The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. 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. 3. Unfortunately, the average replacement cost is around $2,000 and you

Volvo help, forum & news for all models.

Enter the 5 character trouble codes in the search box and submit the search. 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. OBD-II Diagnostic Network (U) Trouble Code For Engine, Shift Solenoid E Performance or Stuck Off. 5. DIYs, recalls and advice. If you have any doubt as to repairs on your vehicle, please contact your technician. 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. However manufacturer may have a different definition for the U1900 OBD-II Diagnostic Network (U) Trouble Code. However, non visible symptoms will be increased combustion temperature and increased Nox emissions. P0400 Volvo V50; P0400 Volvo 123; P0400 Volvo V70; Volvo P1800 P0400 Engine Trouble Code. soon as you can.

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 … 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).