1997 Ford F150 p0153

1997 FORD F-150
15,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MIGUEL2112
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  • 1 POST
I have a p0153 code and checked for misfires, fuel pressure all OK. O2 values are closed loop short term bank 1 -2.34%
long term bank 1 7.03

short term bank 2 0.00%
long term bank 2 0.78%

Am I looking at a bad o2 sensor and is (p0153 circuit slow response) located upstream passengers side
thank you
Feb 22, 2009 at 4:59 PM
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DAVE H
  • ✓ASE Certified Mechanic
  • 13,384 POSTS
  • ASE Certified Mechanic
21) DTC P0133 & P0153 This code indicates that response rate is below calibration in HO2S as follows:
DTC P0133 for right front (or front, except V8 HO2S.
DTC P0153 for left front (or rear, except V8 HO2S.
Possible causes are as follows:
Open or shorted circuit.
Exhaust leak.
Excessive fueling.
HO2S coated with contaminants.
Faulty MAF sensor.
Leak in air induction system.
With scan tester connected, turn ignition on. Access Generic OBD-II functions and enter. Select Diagnostic Monitoring Test Results and enter. Scroll to Test ID: 01 and enter. Press Start. If measured value is 614 or more, fault cannot be duplicated or identified at this time and testing is complete. If measurement fault is less than 614, go to next step.
Feb 22, 2009 at 6:40 PM
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