I CHANGED THE REAR AFTER THE CAT

  • Tiny
  • Anonymous
  • 1996 Lexus ES 300
  • 178,000 miles

I changed the rear after the cat. Convertor oyxgen sensor. I couldnt get the car started. So I put the old one back on. Still can't get the car started. I disconnected the negative terminal to clear the codes. I had the car running to heat the exhaust in hopes of trying to loosen the nut easier. When the nut broke loose the car stopped running. Didn't think this was a problem so I swithed out the sensor. I put the old one back on. Still cant get the car started.

Sunday, October 28th, 2012 AT 8:18 PM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

The rear o2 has only 1 job, to monitor the cat activity. Will not cause driveability issues or cause the car not to start

start with basics, compression, fuel pressure and spark.

Roy

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Sunday, October 28th, 2012 AT 11:15 PM

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