Pickup 2WD L4-155 2555cc 2.6L SOHC VIN E 2-bbl (1988)
Engine Control Module: Description and Operation
Adaptive Memory Control
The ECU controls the duty cycle of the jet mixture control solenoid based on output voltage signals from the oxygen sensor. The mean (midpoint)
values of the duty cycle are stored in the RAM (random access memory). The last signals received are stored even when the ignition switch is turned
OFF.