Trouble code P1684 means: The battery has been disconnected within the last 50 starts
P0304 : cylinder number 4 misfire.
Trouble code P1687 means: No Mechanical Instrument cluster bus message
P0401 Exhaust Gas Recirculation Flow Insufficient Detected
Trouble code P1684 means:The battery has been disconnected within the last 50 starts
P0172 System too Rich (Bank 1)
== == == ==
Code p1776 is solenoid switch valve latched in low/reverse position. Valve is located in valve body not solenoid body.
Camshaft position sensor circuit malfunction. It is located on the driver side front of the engine.
Traction control.
Air bag malfunction
evaporative leak