02 Trans Am - EGR or not?
02 Trans Am - EGR or not? I unfortunately live in an area that has visual emissions and I just bought a 02 Trans am. I read in the sticky that 01-02 didn't have EGR??? Is that true? I just don't see how it can be. I think every car has an egr
gm made the cam smaller and added a better intake , the ls6 intake so power went up and emissions went down or stayed the same as the 98-00 so things are good . Your fine . And you already have the ls6 intake so theirs 350 bucks less in mods to buy .
(These are the headers I have on my WS6, Dynatech Supermaxx Headers) So, just curious, what are the things on the top of these headers? I figured they were for EGR. My TSP 1 7/8 headers don't have them, so was curious what I was going to need to delete.
Did the 01-02 have the AIR system? I was planning on deleting that too.
Did the 01-02 have the AIR system? I was planning on deleting that too.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
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From: So.Cal.
The two top fittings on those headers are for the Secondary AIR system.
The single fitting on the passenger side header is for EGR; this is plumbed to the EGR valve/solenoid which plumbs to the intake manifold (immediately after the throttle body).
2001/2002 do not have EGR (you will see that the intake manifold has no port, see pic linked to by 99Bluz28 above which shows EGR tube going to 1998/1999/2000 intake manifold).
Those headers are for 1999/2000 F-body as it has the driver side AIR fitting is on primary #1;
the 2001/2002 headers have the driver side AIR fitting on primary #3, see pic here:
The single fitting on the passenger side header is for EGR; this is plumbed to the EGR valve/solenoid which plumbs to the intake manifold (immediately after the throttle body).
2001/2002 do not have EGR (you will see that the intake manifold has no port, see pic linked to by 99Bluz28 above which shows EGR tube going to 1998/1999/2000 intake manifold).
Those headers are for 1999/2000 F-body as it has the driver side AIR fitting is on primary #1;
the 2001/2002 headers have the driver side AIR fitting on primary #3, see pic here:
Ahh, okay. Good to know, appreciate the explanation. So when I install my TSP headers, I'd have to delete the AIR system (even if I didn't want to)? I don't know why the PO decided to keep it, but whatever. Probably easier.
Correct, TSP are reach style headers so they don't have AIR, here's a link on a thread that I did to remove the AIR https://ls1tech.com/forums/new-ls1-o...air-tubes.html
You have to delete the AIR with a tune so the SES light won't stay on.
You have to delete the AIR with a tune so the SES light won't stay on.
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I need to reinstall my emissions stuff so I can pass emissions for the first time. It's just a visual and gas cap check so I guess I just need an air system. After the first time I'll be exempt if I drive under 5000 per year.
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