I am getting a P0401 code on my 1998 T&C. I know the description indicates the EGR value, but does this code indicate a problem with the transmission? The code returns about 100 miles after being reset. The transmission seems to jump/slip when the code appears. I have changed the EGR as well as the mass air and several hoses. It was recommended that I clean the intake manifold. I'm ready to to clean the throttle body and check for vacuum leaks but I just wondered if anyone has had any transmission problems. I also saw someone had the EGR value reversed. I will check for that. The engine runs very good and am getting 21 MPG on the highway. Any help would be greatly appreciated.

 

no EGR and trans will be separate issues

 

Thanks Kevin. I thought that to be true. Would reversing the EGR mounting result in this 401?

 

no 401 is an electrical issue inside the egr

 

I recently fixed the P0401 with a new EGR assembly, pretty easy to replace, but I hasd to soak a few bolts with liquid wrench.
2002 Voyager, base model 2.4L