emission failure - add cat ?, lets say ... |
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emission failure - add cat ?, lets say ... |
jimkelly |
Apr 20 2009, 03:24 PM
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#1
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
you fabbed up a set of he's thru a cat and then thru a muffler.
hypothetical - if the exhaust read 700 HC & 7.00 CO - what woud it read with cat? jim Attached image(s) |
type2man |
Apr 21 2009, 06:27 PM
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#2
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Member Group: Members Posts: 355 Joined: 3-March 09 From: Miami, Fl Member No.: 10,127 Region Association: South East States |
If you're looking to pass a smog test, disconnect one of the small vacuum lines and raise the idle and don't let it idle for more than a two minutes before doing the test, it will load up on you. If you're looking to make the emissions go down a bit, you really wont get less than perhaps 3.00 co and 300 hc for a v8. Say for example if you removed the cat from the 99 accord in your og post the readings would be around 70 for hc and .30 for the co. Newer cars with fuel injection just run better.
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