Mechanics

BMW 540I SENSOR PROBLEM

1997 BMW 540i

Engine Performance problem
1997 BMW 540i V8 Two Wheel Drive Automatic 223000 miles

HI GUYS.
MAYBE YOU COULD HELP ME OUT
MY CHECK ENGINE LIGHT IS ON I'D READ THE CODE ITS SAYS O2 SENSOR HEATER CIRCUIT BANK 1 SENSOR 1
I WENT AHEAD AND REPLACED THE SENSOR RESET THE COMPUTER AND AFTER 4 OR 5 MILES THE LIGHT CAME BACK ON I CHECKED THE CODE AND ITS THE SAME ONE


THANKS GUYS
Avatar
Felomax
November 5, 2010.



Maybe it isn't the sensor. Maybe its in the wiring.

Dr. Hagerty
Nov 6, 2010.