Code P081, Cam To 4X Reference Correlation Problem: Notes
WARNING: This page is about a different car, the 1995 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
This test checks to see if there are eight 4X reference pulses between cam signals. Code P081 will set when this signal is not present. DO NOT attempt diagnosis or repair unless vehicle operator is experiencing driveability problems associated with this code.