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front catalytic converter
Topic Started: Oct 18 2013, 10:56 AM (653 Views)
Sinequa
Useless Twit
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Anybody know where I can source a new insert? I've tried looking on line and all I've found is for a 1.3. I took my manifold apart and the insert was almost completely blocked. Tried smoging it with just the rear but the NOx is to high.
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David95237


I actually took an old cat apart and stole the core out of it , reshaped it and used in the metro manifold. Passed smog and saved it for next time.
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David95237


High Nox is caused by a plugged egr valve or egr malfunction. and too much timing advance.
Edited by David95237, Oct 18 2013, 01:07 PM.
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Sinequa
Useless Twit
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If the engine was anywhere near stock yes I agree, in this case however only having a large high flow 2nd cat is not cutting it and need to install the small first one.
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evintho


Are you talking about the pre-cat that's bolted to the exhaust manifold? If so, there's absolutely nothing inside of mine. It's just a big round hollow tube! Am I missing something.........literally?!
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David95237


Have you passed ca smog without that cat. Yes their is a honey comb in that cavity.
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Sinequa
Useless Twit
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Evin yes there is suppost to be a catalyst in the hole, a stock engine will pass with just one. Modified not so much.
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evintho


Well, mine is completely hollow. I wonder WTH happened to the honeycomb?! Is it removeable? Maybe a PO took it out. I remember talking to my smog guy before I took the car off the road. A new one, installed is $300......ouch! Another $300 for the second cat too. Thank you California tree-hugging enviro-nazi's!

I think I'll just leave it as it is. The motor is brand new so hopefully it'll pass smog......this time!
Edited by evintho, Oct 18 2013, 09:10 PM.
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BadEgg
Member Avatar
MPG is fun
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If you don't pass smog without it I have an extra cali exhaust manifold in great shape.
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evintho


I'll know in a few weeks. I'll keep you in mind.
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