S4 Emissions Removal. <searched>
#1
"Mellow Yellow"
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S4 Emissions Removal. <searched>
Alright, I have searched, but since all things I have questions about are rarely in the same thread, and there are a lot of useless threads to go to I'm going to post this anyways.
I live in Alberta so I don't have to worry about emissions. What I want to know is:
Oil Metering pump, I'm going to block this off on my S4 and run premix and also plug the injection holes. Anything else I should worry about?
EGR, I'm going to block this off also. What problems can I expect with this, and what do I do about it? Is there anything else I have to change when I do this?
Air Control Valve, same questions as EGR, however I'm more concerned about this one.
BAC Valve. Again, same questions. I would appreciate any instruction.
Locations where I can buy everything I need for removal of the air pump, since I no long have a Cat and have a resonator instead.
I will continue to search for answers, but if anyone feels kind enough to make that easier by posting answers I'd be much obliged.
I live in Alberta so I don't have to worry about emissions. What I want to know is:
Oil Metering pump, I'm going to block this off on my S4 and run premix and also plug the injection holes. Anything else I should worry about?
EGR, I'm going to block this off also. What problems can I expect with this, and what do I do about it? Is there anything else I have to change when I do this?
Air Control Valve, same questions as EGR, however I'm more concerned about this one.
BAC Valve. Again, same questions. I would appreciate any instruction.
Locations where I can buy everything I need for removal of the air pump, since I no long have a Cat and have a resonator instead.
I will continue to search for answers, but if anyone feels kind enough to make that easier by posting answers I'd be much obliged.
#2
Tear you apart
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OMP - I have not messed with and intend on keeping it.
EGR - fine IMHO without it. You block it off and cap the vac lines (two iirc). I spray some RTV into the rubber peice and push it down. Make your own gasket (or buy one)
ACV - remove it, block it off ( use a new gasket or make your own), there are two vac lines that go to the back of the motor. Cap and remove them, leave the one that goes to the pressure sensor.
BAC - I suggest going to Kevin Lander's site (I'de link you if I could spell) and check that out. You'll see what you need to remove and cap when you do it. But keep in mind coolant flows through the BAC from the water pump to rear rotor so you'll need to run a new coolant line that goes straight from the water pump to the rear rotor. So do something like my picture suggests. Thanks Kahren for the picture.
PS: Found the link: http://www.rotaryresurrection.com/ go there and check out the emissions install.
I hope that helped?
EGR - fine IMHO without it. You block it off and cap the vac lines (two iirc). I spray some RTV into the rubber peice and push it down. Make your own gasket (or buy one)
ACV - remove it, block it off ( use a new gasket or make your own), there are two vac lines that go to the back of the motor. Cap and remove them, leave the one that goes to the pressure sensor.
BAC - I suggest going to Kevin Lander's site (I'de link you if I could spell) and check that out. You'll see what you need to remove and cap when you do it. But keep in mind coolant flows through the BAC from the water pump to rear rotor so you'll need to run a new coolant line that goes straight from the water pump to the rear rotor. So do something like my picture suggests. Thanks Kahren for the picture.
PS: Found the link: http://www.rotaryresurrection.com/ go there and check out the emissions install.
I hope that helped?
#3
"Mellow Yellow"
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Props to you, thanks for the help. More opinions still welcome though!
Originally Posted by Jager
OMP - I have not messed with and intend on keeping it.
EGR - fine IMHO without it. You block it off and cap the vac lines (two iirc). I spray some RTV into the rubber peice and push it down. Make your own gasket (or buy one)
ACV - remove it, block it off ( use a new gasket or make your own), there are two vac lines that go to the back of the motor. Cap and remove them, leave the one that goes to the pressure sensor.
BAC - I suggest going to Kevin Lander's site (I'de link you if I could spell) and check that out. You'll see what you need to remove and cap when you do it. But keep in mind coolant flows through the BAC from the water pump to rear rotor so you'll need to run a new coolant line that goes straight from the water pump to the rear rotor. So do something like my picture suggests. Thanks Kahren for the picture.
PS: Found the link: http://www.rotaryresurrection.com/ go there and check out the emissions install.
I hope that helped?
EGR - fine IMHO without it. You block it off and cap the vac lines (two iirc). I spray some RTV into the rubber peice and push it down. Make your own gasket (or buy one)
ACV - remove it, block it off ( use a new gasket or make your own), there are two vac lines that go to the back of the motor. Cap and remove them, leave the one that goes to the pressure sensor.
BAC - I suggest going to Kevin Lander's site (I'de link you if I could spell) and check that out. You'll see what you need to remove and cap when you do it. But keep in mind coolant flows through the BAC from the water pump to rear rotor so you'll need to run a new coolant line that goes straight from the water pump to the rear rotor. So do something like my picture suggests. Thanks Kahren for the picture.
PS: Found the link: http://www.rotaryresurrection.com/ go there and check out the emissions install.
I hope that helped?
#4
I'm a boost creep...
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Originally Posted by Zokus
EGR, I'm going to block this off also. What problems can I expect with this, and what do I do about it? Is there anything else I have to change when I do this?
Air Control Valve, same questions as EGR, however I'm more concerned about this one.
Air Control Valve, same questions as EGR, however I'm more concerned about this one.
BAC Valve. Again, same questions. I would appreciate any instruction.
Locations where I can buy everything I need for removal of the air pump, since I no long have a Cat and have a resonator instead.
#6
"Mellow Yellow"
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Originally Posted by NZConvertible
The BAC valve is for idle speed control. It has nothing to do with emissions control. Why do you want to remove it?
#7
I'm a boost creep...
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Originally Posted by Zokus
I thought the screw on the TB was for idle adjustment...
...is it a good idea to leave the solenoids that those Vac hoses run to connected to the the wiring harness?
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#8
Boost in..Apex seals out.
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Note: If/When you block off the oil injector holes with bolts, use SHORT ONES. Bring one of the injectors with you to a hardware store, find the correct thread/pitch..then match up the thread lengths. Then pick one that is 1 size shorter.
#9
"Mellow Yellow"
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Originally Posted by NZConvertible
That's for setting the base idle speed. The BAC valve is for idle speed control, reacting to changing loads on the engine and assisting with starting the engine and cold-idle.
Alright, thanks. I'll leave that on then.
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