Truck came in running poor at times and a rich code bank 1. Also had an O2 bank 1 sensor 1 high and 2 missfire codes. Tried replacing the Bank 1 O2 sensor - no change. Checked the fuel pressure, 70psi, the high end spech is 60psi. Replaced the fuel module, fue...

FIX posted 4/19/2013

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