Note On Intermittents

This code may set due to an intermittently sticking ISC motor.

Fig 1: Code P030 Schematic (4.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Code P030 Flow Chart (4.6L - 1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Code P030 Flow Chart (4.6L - 2 Of 2)

Courtesy of GENERAL MOTORS CORP.