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Old 02-24-2001, 06:53 PM
John Bobo
Posts: n/a
I checked the DM pin, HFM pin and ISC pin. ISC indicated three codes: 2, 5, and 11. No other codes were present. While performing this check, I double checked the vaccuum supply hoses. I discovered the vaccuum line on top of the intake manifold not connected. ??? I reconnected and the erratic idle ceased. Do the codes indicated relate to a vaccuum problem? Is there a printed code chart avaiable from MBUSA other than microfiche?

By the way, great article. Thank you for the suggestion.
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