Service engine light , maybe the converter? - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

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post #1 of 4 (permalink) Old Jul 12th, 02, 06:36 PM Thread Starter
Join Date: Jul 2002
Location: Tulsa , Oklahoma, USA
Posts: 2
Hey I have a 86 z28 305 and removed the converter and put a glass pack in there and my service engine soon light is coming on and staying on when i drive for about 3 minutes it comes on, could it be that I removed the converter? Thanks alot for any help.
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post #2 of 4 (permalink) Old Jul 12th, 02, 07:06 PM
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Join Date: Nov 2001
Location: Oxford Pa.
Posts: 503
86 did not have a "downstream" O2 sensor, so the old computers had no way of checking "catalytic converter efficiency"(which would set a check engine light on a newer vehicle)...
You'll have to have the codes retrieved from the computer to see what is happening...
Since it doesn't appear to be a hard code (check engine light on constant)My money is on a faulty/tired O2 sensor....
Have it checked out(have the codes retrieved by Somebody with a scan tool) before You shovel money into it guessing at the prob though....
Freindly reminder: Federal law does not allow removal of a cat converter...(I'm not bustin on Ya'....just lettin Ya know before someone else says it)....
Good Luck....Repost with Your code info....
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post #3 of 4 (permalink) Old Jul 13th, 02, 12:42 PM
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Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Someone verify this information so I don't spread false information.

On an 86, you should be able to short the lower right two terminals of the diagnostic connecter below the stearing wheel and then turn the ignitions switch to run (not start). The check engine line will flash codes which you can look up in a service manual or perhaps even on the web.

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post #4 of 4 (permalink) Old Jul 13th, 02, 01:47 PM
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Join Date: Jan 2001
Location: conway s.c.
Posts: 168
You're close dnult, it's the two upper right hand terminals that you put a jumper on.

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