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1998 Ford Ranger 98 Ford Ranger too lean

Tiny
LURCH241
  • MEMBER
  • 1998 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,789 MILES
Hello I have a 1998 ranger 4x4 auto with the 4.0 and for the last 2 months I keep getting a code of p171 and p174 saying bank 1 and bank 2 are too lean I have done a tune up changed the 02 sensors what else could I possible do to maybe fix my problem
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Friday, December 21st, 2007 AT 9:55 AM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Mass Airflow Sensor. Ford had problems with them.I personally havent had much luck with cleaning them.I do suggest that you use a Ford part versus an aftermarket. Only other thing is to check where the pcv line hooks to the manifold for a vacuum leak, if none replace the MAF
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Saturday, December 29th, 2007 AT 7:41 AM

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