Check engine light?? - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 07-24-2013, 08:17 AM Thread Starter Fanatic
Join Date: Feb 2009
Location: Alma, Colorado AND Independence, Iowa
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Check engine light??

Manual is too vague. F-450, 62K miles, full delete, pulling 17K toyhauler in Rockies yesterday: max boost 20, dropped to 31 mph, little black smoke up 7% grade. Checked all rubber boots: OK. Any ideas??? Thx in advance guys/gals. Johnny in Colorado. Tune is MiniMaxx. Anyone know IF I can do any diagnosing on my tuner screen??

Last edited by IOWASTROKER46; 07-24-2013 at 05:28 PM.
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