hey.
i just noticed tonight that other than my dash,hvac,brake,and rear turn signal lights going out that i also got a P1684 code come up. I just had to replace the oil pump, and its only been like 3 weeks. my dad and i did this and now i have this code. anyone have any ideas for how to take care of either of these?

p.s. my freakin P0420 also came on again

 

P1684 is only a status code and means that the PCM memory has been cleared within the past 50 ignition cycles, it will not set the CEL on it's own.

 

I wonder if we have this P1684 topic enough