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2001 Hyundai Santa Fe Code P1071

Tiny
THEKIDDYKID
  • MEMBER
  • 2001 HYUNDAI SANTA FE
Engine Performance problem
2001 Hyundai Santa Fe 4 cyl Four Wheel Drive Manual

HI HAVE REPLACED BOTH OXYGEN SENSORS OF MY 2001 SANTA FE, THE CHECK LIGHT HAS COME BACK ON, CAN YOU ADVISE PLEASE, WAS DONE ONE WEEK AGO, LIGHT CAME BACK ON, RESET LAST THURSDAY AND CAME BACK ON AGAIN,

ALSO CAN I CLEAN MY MASS AIRFLOW SENSOR/METER WITH BENZENE?
ANY INFORMATION WOULD BE MOST WELCOM TKS
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Monday, February 1st, 2010 AT 3:46 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lean A/F mixture condition:

Low fuel pressure due to a weak pump or leaky fuel pressure regulator. (Use a fuel pressure gauge to check fuel pressure at idle)

* Dirty fuel injectors. (Try cleaning the injectors)

* Vacuum leaks at the intake manifold, vacuum hose connections or throttle body. (Use a vacuum gauge to check for low intake vacuum)

* Leaky EGR valve. (Check operation of EGR valve)

* Leaky PCV Valve or hose. (Check valve and hose connections)

* Dirty or defective Mass Airflow Sensor (MAF). (Try cleaning the MAF sensor wires or filament with aerosol electronics cleaner. Do NOT use anything else to clean the sensor, and do not touch the sensor wires)
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Monday, February 1st, 2010 AT 3:53 PM

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