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.
Thursday, September 6th, 2012 AT 1:21 PM