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How do I check which air/fuel ratio sensor I need to replace

Tiny
ERIKA.GAVINA
  • MEMBER
  • 1997 LEXUS ES 300
  • 220,000 MILES
My check engine light went on and a diagnostic test gave me results to replace air/fuel ratio sensor and now the car doesnt want to turn on it just makes a clicking noise. Help?
Thursday, October 20th, 2011 AT 5:50 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
**No crank at all/nothing/nada when key is engage to starting position

Could be a blown fusible link, the starter, starter relay, clutch switch/park and neutral switch/transmission position switch and ignition switch assuming the battery condition and connections are good. Note:If it doesn't apply disregard.
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Wednesday, October 26th, 2011 AT 2:29 PM
Tiny
ERIKA.GAVINA
  • MEMBER
  • 2 POSTS
THANK YOU WAS THE STARTER, THE CAR DOES START NOW BUT ENGINE LIGHT STILL APEARS ON SO I GUESS I HAVE TO REPLACE THE AIR/FUEL RATIO SENSOR BUT HOW DO I KNW OR CHECK WHICH ONE OF THE TWO IS THE BAD ONE?
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Wednesday, October 26th, 2011 AT 5:24 PM

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