147 Catalytic converter replacement/removal - Alfa Romeo Forum
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Wolf 147
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147 Catalytic converter replacement/removal

My cat has one foot in the grave and is giving me a few grey hairs.

Alfa dealer quoted R7000 to have it replaced , but said I can simply remove it without any hassles, because the lambda sensor is in front of the cat.

After going to the local exhaust 'specialist', I was told that the sensor is indeed behind the cat and that I will need to replace it. A second opinion informed me of a 'cat/lambda fooler' and that he can do everything for just under R1000.

I'm not very keen on just letting anyone work on my car and would like to know 3 things before making a decision.

1) Is it necessary to put in a lambda fooler? (Even just to be on the safe side)
2) Is there a place in the Cape Town area that anyone can recommend to have it done?
3) Would it be necessary to have my ECU remapped? (If yes, where and ball-park figure of how much?)

Alfa 147. 2003 model. 2l Selespeed.
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The "cat" bolts will probably need drilling out. Plenty of people here including myself break 147s with good "cats" they scrap at 40 so it may pay you to do your homework costs wise maybe get a secondhand cat sent paid by paypal etc. The alternative is to simply bash out its insides if the exhaust is blocked.In my limited experience ive as yet come across a 147 with a cat failure but maybe the posts will flood in saying im wrong.
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When I was replacing the mid section of my exhaust for a stainless steel one I noticed my cat was rattling when I shook it. Would replacing with a ss pipe knock my engine light on?
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I had a rattle in the mid section exhaust, just as you describe. I unbolted that section of the exhaust, smashed out the insides with a bit of pipe and put it all back together again. It's sort of a ceramic honeycomb, and a chunk had broken off causing the rattle. No problems, apart from the sense that I have a weeny bit more power.
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147 , cat , catalytic , converter , decat , lambda , replacement or removal

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