i have a 2004 ford f150 i am getting a p0020 what do i do to fix it

2004 FORD F-150
113,000 MILES
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DSMALLEY
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has new timing chains and guides i got a p0021also it went away
Feb 28, 2012 at 3:42 PM
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RASMATAZ
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P0020:Intake Cam Position Actuator Open Circuit - Bank 2
Feb 28, 2012 at 5:39 PM