removing cat + O2 simulator = EGR malfunction?
#1
removing cat + O2 simulator = EGR malfunction?
talking to a guy at petersen enterprises (something of a performance shop) here in eastern iowa, i mentioned i was considering removing my cat and installing an O2 simulator. he said this would be a no-no, as the EGR valve relies on backpressure for proper function and this would keep it from working right. so i have 2 questions, since i was too much of a wuss to let him know i was fairly clueless:
1. what is the EGR valve and what does it do?
2. is his statement true, or can i lose the cat?
all help would be greatly appreciated.
P.*. what model K&N cone should i get for a CAI, and can any of them be safely modified to relocate the IAT inside the cone?
1. what is the EGR valve and what does it do?
2. is his statement true, or can i lose the cat?
all help would be greatly appreciated.
P.*. what model K&N cone should i get for a CAI, and can any of them be safely modified to relocate the IAT inside the cone?
#2
Here'* a link for ya (Not Bonne specific, but it should still answer your question)
http://www.misterfixit.com/egrvalve.htm
http://www.misterfixit.com/egrvalve.htm
#3
He'* wrong about the EGR being backpressure dependent. Or at least in your case. There are many types of EGR valves out there. However, I still would suggest keeping the cat. A high-flow performance unit will function as well as a straight pipe, you'll be legal, and your emissions won't kill my grandkids.
The RX-4750 is a fun, enormous filter, and has the IAT hole. I modified mine for my IAT (enlarged the hole provided). This filter also provides a nice heavy base for mounting a heat shield.
The RX-4750 is a fun, enormous filter, and has the IAT hole. I modified mine for my IAT (enlarged the hole provided). This filter also provides a nice heavy base for mounting a heat shield.
#4
thanks for that link, it pretty much covers all the bases. nice little blurb about reginald. willwren... i probably will leave the cat on, simply because of laziness. and because of your grandkids but seriously, can i get by spending $20 less for a K&N re-0810 or 0920 and just drill into the endcap for the IAT and seal up around the wires with some glue or something?
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