A few questions/issues - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 04-05-2013, 09:07 PM Thread Starter
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A few questions/issues

I have a 2008 6.4. Just done the down pipe back 5 inch dpf delete exhaust. SCT x3 tuner running the canned street tune until my rcd 450 tune arrives. Anytime I go full throttle and full boost it goes into reduced engine power and throws a over boost code. Clear the dtc and its fine til I tromp it again. Also around 1800-1900 rpm it has like a miss or a surge in it but only when the tune is on it and I also have been getting a cylinder 5 combustion balance code as well but the truck runs fine. It has 162,200 miles on it never had any trouble out of it. Any suggestions??

2008 Ford F-250 Lariat Crew Cab 4x4, AFE 5 inch down pipe back exhaust, SCT X3 off road tuner with RCD 450 tune, FLO PRO EGR Delete, S&B cold air intake, Kenwood in dash screen with Bluetooth, Rockford 12" sub, Nitto Dura Grappler 35x12.50 20 inch tires.
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