I have a 2004 dodge grand caravan (V3.3L) recently throw OBD code
P0404 & P0405 code.
I did my research on internet and did the following:
I took off the EGR and clean it with Carb cleaner
I disconnected my battery for 5 minutes.
after i done all above, the SES light was gone but right after I start
engine and drive for 200 yards, SES back on.
I used my OBD scanner to read the code, now it gave me P0405.
looks there's only one thing i can do is to replace the EGR? or
anybody has any idea/suggestion?