What does the EGR valve position sensor do?

What does the EGR valve position sensor do?

The EGR Position sensor detects the movement and position of the EGR valve pintle. The EGR Pressure sensor detects exhaust gas flow through the EGR passage.

How does Cummins ISX EGR work?

Cummins ISX Engine History. In 2002, the ISX15 became one of the first diesel engines to incorporate an exhaust gas recirculation (EGR) cooler system. This technology takes the engine’s exhaust and recirculates it back to the intake chamber, reducing NOx particles.

What are some symptoms of a bad EGR valve?

EGR valve symptoms can vary, however, the most common symptoms of a faulty EGR valve are explored below:

• Your engine has a rough idle.
• Your car has poor performance.
• You have increased fuel consumption.
• Your car frequently stalls when idling.
• You can smell fuel.
• Your engine management light stays on.

How does an EGR valve position sensor work?

The EGR valve position sensor, which is sometimes called an EGR pressure feedback sensor, helps control exhaust gas recirculation (EGR) by sensing the position of the EGR valve pintle. As the pintle moves within the EGR valve, the sensor tracks its position.

Is the ISX CM870 EGR field serviceable?

If you’re talking about an EGR from an ISX CM870, it is not field serviceable. The wire going into the silver cylinder is the stepper motor control, the other plug is the EGR position. If you took it apart, you ruined it since the unit does have to be timed.

What does Code 2272 mean on a EGR valve?

The code is EGR Valve Position Circuit – Voltage below normal, or shorted to low source crosses to a cummins code 2272. The valve does need to be replaced if this code is triggered due to a failed position sensor. If that is the only code active, replace the valve.

How many plugs on the EGR valve?

Egr question to the knowledgeable: egr has two plugs, on the pre 2007 isx. Lower – 6 o’clock and upper: 3 o’clock. What do they read/do – each plug? I have taken the egr valve apart to clean it, putted it back together and installed it : this code came up : Mid 128 #pid 27 fmi 4. Thoughts?