ERROR CODES P0401
2001 Dodge Caravan • 198,000 miles
My 01 Caravan (3.3L 6 cyl) had error codes p0442 and 0455. Smoke test showed fuel filler neck to be leaking. I had that replaced and now I have those same codes PLUS now p0401. I have not driven the car more than 15 miles yet. I was wondering if the new filler neck triggered the 0401 code by causing there to be a difference in vacuum (or anything else that may be detected as a change) than the van sensors are accustomed to and hopefully will go away after a few drive cycles or should I now be looking for a problem with the EGR?
October 5, 2012.
October 5, 2012.
re smoke test the system for any other leaks.
Found the source of the p0401, it was a small hose damaged. Once the repairs are made, will the codes clear with driving eventually? Auto pats stores aren't supposed to clear codes and I at least want to know if they will clear on their own once repairs are done before shelling out $90 each for repeated smoke tests.
Yes, t will clear itself after running the test for monitor and passing 3 times.
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