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Smog system 1987 Chevy 5.7L Suburban

Tiny
DONALD6825
  • MEMBER
  • 1987 CHEVROLET SUBURBAN
  • V8
  • AUTOMATIC
Will there be any communication issues with ECM regarding the fuel air mixture if I properly disconnect the smog system(Plug exhaust manifold, disconnect electrical, plug vacuum ports)
Tuesday, March 1st, 2011 AT 4:39 PM

4 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If you live in a state that does sniffer tests, I don't think that will work. Also, may turn on check engine lite?

Illegal?
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Tuesday, March 1st, 2011 AT 6:58 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The o2 sensor tells the computer if system is rich or lean.
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Tuesday, March 1st, 2011 AT 7:01 PM
Tiny
DONALD6825
  • MEMBER
  • 2 POSTS
Thank you for the answer. That is what I hoped you would say, thanks
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Tuesday, March 1st, 2011 AT 8:46 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Glad to help.
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Thursday, March 3rd, 2011 AT 4:55 PM

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