I am getting several codes, P0171, P0174, P0303.

Tiny
CALEBWAGNER
  • 2002 FORD F-150
  • 150,000 MILES

I am getting several codes, P0171, P0174, P0303, and P0316. I am trying to figure out if the cylinder misfire is causing the system too lean errors, or if the system too lean condition is causing the misfire.

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Saturday, December 22nd, 2012 AT 7:30 PM

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Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

Check the pcv hose at the back of the throttle body

303 missfire number 3, 316 is missfire under 1000rpm on cylinder 6.

My thought are a bad intake manifold. It leaks coolant into the boots, gaskets leak causing lean codes.

Roy

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Saturday, December 22nd, 2012 AT 7:54 PM

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