Originally Posted by R 4 5 T 4 M 4 N
Anyone ever get an error code 2e31 and resolved it? I could not find much information searching. Most say its a wiring issue, however I checked all the connections and they seem fine. Could it be a faulty injector/coding? I have not changed the injector recently.
I know whats your problem, it happened to me when installing JB4.
See the bottom of my thread.
(Check all your DME pins or harness)