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4 WD catalytic converter removed

Tiny
JDBOLIN
  • MEMBER
  • 1997 TOYOTA TACOMA
  • 29,000 MILES
4 WD catalytic converter removed. One oxygen sensor is in service. The other is left hanging. Can this damage the vehicle computer etc?
Wednesday, October 19th, 2011 AT 12:49 AM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
First of all, removing the cat is in violation of federal law. There is no reason to remove it. You can get an aftermarket that is a flow through and get the same results as a straight pipe but have the rear o2 working.

The check engine light will be on and you will have difficulty getting it inspected.

Why did you remove it?

Roy
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Wednesday, October 19th, 2011 AT 12:53 AM
Tiny
JDBOLIN
  • MEMBER
  • 4 POSTS
I did not remove it. I bought the vehicle used and am in the process of getting some things fixed when I found this out.
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Thursday, October 20th, 2011 AT 1:59 AM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Many states also make it a crime to remove the CAT. Reputable mechanics/shops will not work on it without a CAT.
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Thursday, October 20th, 2011 AT 2:02 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, the bcm is body control computer and the pcm is the engine control computer.

Roy
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Tuesday, October 25th, 2011 AT 11:50 PM

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