That's interesting because im going throught the same problem. I have a 97 Maxima and the engine light came on. I had it scanned and the code was P1441 which means "Vacuum cut bypass valve or ciruit fault".I dont know what that is. I need help with figuring this out too. try taking out the egr valve and cleaning it really good with break cleaner also change the gasket it's like 3 bucks unhook your battery for 10 minutes to let the computer reset itself after that drive for about 20-30 minutes to let the computer relearn the car then take it to autozone or checkers and use their free code reader to see if it is still reading that code if so change the egr valve all together with. Check the connection between EGR valve tube and the engine. The tube can be easily clogged by carbon deposit from the exhausted gas. At least that is what happened to my 96 maxima. The tube is kind of difficult to reach because it is on the back of the engine, opposite to the firewall.
in the air filter cover
Bad gas mileage. Car studders or shuts off at stop or turns. Black smoke.
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
it could be your mass air flow sensor
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
Trouble code P0100 means:Mass or volume air flow circuit malfunction
Trouble code P0400 means:Exhaust gas recirculation-flow malfunction
No it will not run with out it, It HAS to have it.
The mass airflow sensor is installed in the air intake duct If you look at the air filter box it is just to the left on the arm of the box
P0403 = EGR Flow circuit malfunction.
You can try using commercially available Electrical contact cleaners. These leave no residue and are fast drying. Avoid any contact with the thin wires. If this happens, you better be ready to spend for a brand new one or a surplus. > Leo V. ---- CRC Mass Air Flow cleaner ( I just used it to clean the MAF on my 2002 Maxima SE)
no, the MAF sensor is between the air filter and throttle body. the idle controll is at the throttle body.
This denotes an issue with the Exhaust Gas Recirculation system, which transfers exhaust gases from the exhaust manifold to the intake manifold in order to lower combustion temperature. The fault code will appear if the flow of gases is lower or greater than normal.
I would look into a stuck open, or jammed Egr Valve.
sounds like you need to check your idle air controller or mass air flow meter, need to check you a/f alpha and make sure its around 100 . check your your fuel presure and see if you have pressure during cranking.
po400 means you have insufficient or excessive exhaust flow within the egr system. The o2 code means it has detected this as well. Chances are both are on because either the egr system is not passing exhaust fumes into the manifolds properly. or the manifold has a leak. You can start by checking the manifold for leaks, cracks, holes, etc. If the manifolds seem tight, try actuating the egr valve. If the egr valve works blow compressed air through the tubes of the egr system and find the leak or clog. Carbon buildup is the number one cause for a clogged egr. Also check the lines make sure they are free of holes and are attached. Dont buy a new o2 sensor until you have fixed the egr code as the egr malfunction will likely set the o2 code again within a few months. hope this helps..
Code P0400 means EGR insufficient or excessive flow detected Code P0440 means Evap system leak
Plugged EGR passage which restricts the flow of exhaust gasses, faulty EGR solenoid, faulty EGR solenoid wiring/harness, vacuum lines damaged or disconnected to the EGR valve solenoid or to the EGR valve, or a faulty EGR valve.
Dealer needs to prove that the flow-master was the cause of the malfunction...
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
Trouble code P0100 means:Mass or volume air flow circuit malfunction
MAP SENSOR1996 Nissan/Datsun Truck Pickup 4WD 2.4L SFI 4cylThe MAP Sensor is located:Under hood, passenger side, upper engine area, passenger side end of air intake hose, mounted rear of air filter housing
The dust particals sticks on the wires where from it sense the flow of air mixture.