$03 Injection system status

Fig 1: Identifying Data A & B Status (Mode 1)

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Data A - status for bank 1

Data B - status for bank 2

Fig 2: Identifying $03 Injection System Status (Mode 1)

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Bit 0 - open-loop control, conditions for air/fuel control not yet met.

Bit 1 - closed-loop control, oxygen sensor signal used to control injection.

Bit 2 - open-loop control due to conditions such as full load, etc.

Bit 3 - open-loop control due to system faults.

Bit 4 - closed-loop control, but fault signal from at least one oxygen sensor.

Bits 5 to 7 not used.