Full Rich Fuel Mode 92 600 Sel
 

AFTER GETTING THE CAR WASHED IT WILL OCCASIONALLY GO INTO FULL RICH FUEL FLOW WITH SMOKE COMING OUT THE BACK AND MILEAGE INDICATOR SHOWING LESS THAN 4 MPG. AFTER A DAY OR SO IT WILL DRY OUT AND RUN FINE. IM NOT SURE WHICH PARTS ARE AFFECTING THE FUEL FLOW WHEN THEY GET WET AT THE CAR WASH. IM HOPING SOMEONE HAS A SUGGESTION AS TO WHAT IS CAUSING THE CAR TO RUN SO RICH.
I HAVE LOOKED AT THE INTAKE AIR TEMP SENSORS AND THEY WERE DRY, I DONT KNOW WHERE ELSE TO LOOK
I DID HAVE THE SAME SYMPTOMS ONE OTHER TIME AFTER GOING THROUGH A LARGE PUDDLE AT HIGH SPEED.
THANK YOU

The engine has 2 complete fuel control systems, one for each 6 cylinders. The computer(s) store codes when problems happen. You need to start by having codes read from those computers.