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Old 05-12-2010, 10:16 AM   #1
amf133
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Member Since: Mar 2009
Location: Langhorne PA
Default how to remove all emissions on a 1981 corvette.

I want to remove all of my emissions on my 1981 corvette. Iím replacing the exhaust with duel exhaust no cats, but want to remove all of the stuff from the engine bay to clean it up and make it look a lot better. Does any one know what stuff has to be removed and what needs to be done so there is not check engine light on? Are there any pictures online or has anyone already done the job and documented it for later? Please help.
Thank You
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Old 05-12-2010, 11:03 AM   #2
7T1vette
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There is another thread on this same Forum by "Tnshark" wanting to do the exact same thing. Check out his thread and I will make the same offer to you if he decides not to take me up on the "parts swap".

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Old 05-12-2010, 12:27 PM   #3
palazzopl
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I did my 81, replaced the carb and minifold with a edelbrock set up. the other problem you might have when disconect the computer and harness is the lock up solinoid. I put a switch grounding the test lead under the consol near the ash tray. I only switch it on on the highway. As for the light I took out the blub.
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Old 05-12-2010, 01:16 PM   #4
MotorHead
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Location: Never argue with Morons. If you do, you'll lower yourself to their standards, and they'll win, based on experience !!!
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Go down to you local department of motor vehicles or Drive Clean Center and they will tell you what and where all the pollution stuff is

http://www.drivecleanpa.state.pa.us/
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Last edited by MotorHead; 05-12-2010 at 01:25 PM.
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Old 05-12-2010, 07:00 PM   #5
amf133
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Is it possible to just take off a few hoses and the smog pump so the engine bay looks better or do I have to take everything or nothing out?
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Old 05-12-2010, 07:10 PM   #6
MotorHead
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Location: Never argue with Morons. If you do, you'll lower yourself to their standards, and they'll win, based on experience !!!
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Quote:
Originally Posted by amf133 View Post
Is it possible to just take off a few hoses and the smog pump so the engine bay looks better or do I have to take everything or nothing out?

Depends on how strict they are in your area, visual inspection every year or two you can forget about taking anything off
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Old 05-12-2010, 09:52 PM   #7
terry82
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you can take the pump off .and plug the hoses.your egr can be blocked off .all these can be done with out having a problem and it can all be put back on .save all of it .
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Old 05-12-2010, 10:11 PM   #8
amf133
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If I do this will I have a check engine light on or will everything be fine?
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Old 05-13-2010, 09:47 AM   #9
terry82
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you should not have a problem.most cel come on when you have a problem with the 02 sensor or the tps.if you are still worried about the light ,take off one thing at a time .
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Old 05-13-2010, 03:37 PM   #10
spedaleden
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I removed mine, just remember that there is a green wire in the ecu harness. This wire is the turn on for the AC compressor, you will need to run a new wire or pull the old one out, if your AC still works.

Without it you'll have no AC

FYI
Dennis
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Old 05-14-2010, 12:26 AM   #11
amf133
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Thanks for the tips, I appreciate it!
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Old 05-14-2010, 04:24 AM   #12
Tnshark
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Quote:
Originally Posted by spedaleden View Post
I removed mine, just remember that there is a green wire in the ecu harness. This wire is the turn on for the AC compressor, you will need to run a new wire or pull the old one out, if your AC still works.

Without it you'll have no AC

FYI
Dennis
Where do you run the green wire?
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Old 05-14-2010, 04:24 AM
 
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