Diagnostic Aids

The Code 32 chart is a functional check of the EGR system. If the EGR system works properly and a Code 32 has set, check for other causes for an increased open throttle block learn value.

• Check for a blocked/restricted intake and EGR passages.
• Check vacuum lines.
• Check the MAP sensor function. A MAP sensor may shift enough in calibration to affect the air/fuel mixture without setting a MAP related code.

Fig 1: Code 32, EGR System Ckt Diag.

Fig 2: Code 32, EGR System Error Flow Chart