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Old 06-15-2003, 05:48 PM   #1
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Default EGR blocking

What would happen If I blocked of my EGR at the valve? Will I get any performance gains, and will it cause a SES light? Also where do you put the computer when you put in a CAI?
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Old 06-15-2003, 09:47 PM   #2
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Blocking the EGR will give you no performance gains because the EGR is closed at WOT, blocking the EGR will only help to keep your engine clean. We have an EGR blockoff plate on the GTP for the simple reason of keeping the blower and Intercooler clean. You can buy the plate from ZZPerformance.com for $5. It goes where the EGR tube connects to the exhaust manifolds and then you just disconnect the tube for the egr from the manifolds and put the plate there. Then the EGR will just be letting in clean air. We have a filter on our EGR tube so the air that it sucks in is clean. If you just take out the EGR all together you will get an SES light, but I don't think the SES light will effect your performance any.

When you put in a CAI, you put the computer under it.
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Old 06-15-2003, 10:42 PM   #3
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Default EGR blocking

On that little tube that runs from the EGR valve to under the TB. I plan on blocking it at the valve, and leaving it hooked up so it looks stock. I want to do it for the afor mentioned reason to have a cleaner engine; but also to cool the intake air. I know that hot exhaust can not be good for KR. One last question I notice you have the 1.9 ratio rockers; do they make a big differnce? Thanks for the help.
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Old 06-16-2003, 03:52 PM   #4
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Quote:
On that little tube that runs from the EGR valve to under the TB. I plan on blocking it at the valve, and leaving it hooked up so it looks stock. I want to do it for the afor mentioned reason to have a cleaner engine; but also to cool the intake air. I know that hot exhaust can not be good for KR. One last question I notice you have the 1.9 ratio rockers; do they make a big differnce? Thanks for the help.
You cannot block it from the intake manifold (under the TB) to the EGR. You have to block it off from the exhaust manifolds to the EGR. If you block it off between the EGR and intake manifold you will get an SES light.

The hot air does not effect KR at all because the EGR is closed under WOT, which is the only time you get KR. Since the EGR is closed, no hot exhaust gasses go in, and no KR is added.

1.9 Rockers make a big difference. It is all topend power (4000-6000rpm) but it makes a big difference. You get about a 20 horsepower gain and you will be much happier with your car from a 70mph punch. They also help reduce KR quite a bit.
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Old 06-16-2003, 03:59 PM   #5
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Default EGR Blocking

Sweet that was what I was trying to figure out. I appreciate your help.
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Old 06-16-2003, 09:22 PM   #6
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Anytime.
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Old 06-18-2003, 11:18 AM   #7
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Default SES Light

I blocked my EGR at the exhaust manifold before the EGR valve, and now I got a SES light. I am not really sure if that is what is causing it because I did gut my airbox, and remove my TB screen. Does anyone know how I can check my codes, and maybe reset them without having to go to a dealer or getting a scan tool?
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Old 06-19-2003, 12:19 AM   #8
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Can you post a pic of what the EGR looks like now that it is blocked or at least describe what you did to block it. The SES may be the EGR and I want to try to help you find the problem.
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Old 06-19-2003, 10:09 AM   #9
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Default EGR SES

I found out what it is. I blocked my EGR at the exhaust manifold by bending the pipe over. I was trying to make it look stock like nothing was done to it. The problem is I have found is the computer monitors the flow though the EGR. So, now like you said before I have to block it off at the exhaust maniflod and leave the EGR valve open so air can be sucked through it. I will have to put a filter on it like you did of course. I now see what you were talking about. Not a big deal once I get it fixed after a couple of cycles the light should go away. If not I can get it reset at the dealer fro free.
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Old 06-19-2003, 04:28 PM   #10
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Yup, that is the problem. The light should go away after an hour or so of driving. You definately have to let the EGR get its airflow still. I have the number for the K&N filter that we put on our GTP, but I don't have it in front of me, I can probably get it and then let you know, but I can't remember where the package is, so I may not be able to get it right away.
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