My 93 940 Turbo just decided to introduce me to code 413-from what I can find on here its a code for a EGR temp sensor.Can someone tell me where this thing is? Found the EGR itself-Also what steps should I take to get rid of this code.Do I have to replace this sensor(once I find it) or can it or the EGR or something be cleaned? What may be causing this -the car is running fine though I plan a new set of plugs ,cap and rotor soon.Please help as I have to get the car inspected here soon and it wont pass because of the check engine light.

 

The sensor should be in the valve.
Try clearing it and see how fast it comes back.

 

Ok -I cleared the code and it came back within minutes of driving . I ran over to the junkyard and got another EGR valve which I am going to try tomorrow. My question is where is the EGR coolant temp sensor? There is a plug on the backend of the EGR that has two wires going back into the harness...Looks like there are a couple of sensors in the intake manifold below the throttle body-the one toward the front of the engine looks like a temp sensor but has the wrong color wire leads to match the EGR. The second sensor is of course difficult to get at-it is toward the back of the engine under the throttle body-is this the right one? Code 413 says EGR coolant temp sensor-the only other sensor I see on the EGR tubing is a plug in the plastic y over by the turbo but this wouldnt measure coolant rather it seems to be a sensor for air temp or flow maybe.Anybody know which one I should be checking/replacing-they are expensive little doodads and dont want to change the wrong one.Thanks.....

 

I think the sensor is inside the valve.