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Diagnostic Aids

A vacuum leak may cause a Code 32. Check all vacuum hoses and components connected to vacuum hoses for leaks. Also check cruise control and A/C systems vacuum hoses and components.

Fig 1: CODE 32, Schematic, EGR Circuit Loop Error

Courtesy of GENERAL MOTORS CORP.

Fig 2: CODE 32, Schematic, EGR Circuit Loop Error

Courtesy of GENERAL MOTORS CORP.

Fig 3: CODE 32, Flow Chart, EGR Circuit Loop Error

Courtesy of GENERAL MOTORS CORP.