Egr Valve Wiring Diagram

Ground circuit for egr valve solenoid.

Egr valve wiring diagram. It shows 3 4 as the motor for the 2 0tdci engine. The wiring diagrams i have show 2 3 as the motor for the 1 6tdci engine. Learning how to test an egr valve will save you time money and some headaches. P0405 means the pin on sensor part is stuck low.

The egr is pwm modulated first is to clean in. The egr valve in photo 4 of 4 with the green check mark is the one covered by this article. Search by sensor part number select by cummins sensor p n under search option 2 part search. The valve is located directly in between the large black cylindrical oil filter.

Tell me in most cases the valve is stuck closed. It could be the valve is mechanically stuck. The valve works exactly the same in the 1997 as it does in the 1984. The exhaust path must be good the egr must not stick closed or open.

It might free off and work for a bit or work for longer if whatever is. Below are examples of the search option 2 functions. Egr valve test 2000 2009. On page 6 6 hanes 72030 you will find the diagram that shows the egr valve for models 1981 through 1984 the diagram also is followed by models 1985 through 1997.

Different places inside the valve on my 1 8 egr. After miles of service the exhaust gas recirculation egr system especially the egr valve will lead to engine performance problems due to carbon buildup components mechanical problems or vacuum hose leaks. The egr vacuum diagram for your particular vehicle is displayed on the vehicle emission control information veci label. Most of the egr valves will have the letters a thru e molded onto the egr valve s connector.

And 90 degree aluminum intake elbow throttle body on top of the motor. If you need the egr valve test for the egr valve marked with the x you can find it here. If i may i would advise you to unplug the egr valve on your motor. It is a small black cylinder directly on top with a 4 prong wire harness connector going directly into the top.

The egr valve in photo 3 of 4 with the red x is not covered by this article and is tested differently. Gray with black stripe wire. Clean it is best first action. Just pull the.

Type your sensor part number into the box. Egr valve pintle position sensor ground provided by the pcm. Managed to dismantle the thing and fix it. When faults occur it is due to the valve sticking partially open or binding so the ecu signal is no longer able to open it.

The monitor pin is at x this tells the pcm where the egr moved per pcm command. I ll be using these same letters for the circuit descriptions below. Egr valves are commonly a simple two wire solenoid valve driven open by a pulsed ecu signal and returned closed by spring pressure.