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Home >> Pontiac >> 1999 >> Sunfire L4-144 2.4L DOHC VIN T SFI >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Engine Scan Tool Data Definitions >> Purge Learn Memory

Purge Learn Memory

Range - 0.00-1.00
The purge learn memory is a display of the PCM adding or subtracting the fuel. The purge learn memory is based on the [1][2]EVAP Purge. This number is added to the fuel trim calculations. The fuel is added or subtracted there. A number near 1 indicates that the fuel is being added to the fuel trim. A number near 0 indicates that fuel is being taken away from the fuel trim.
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