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Author Power flow de cat+ ECU
philly willy
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Registered: 13th Jun 02
Location: DARLINGTON
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5th Nov 04 at 20:05   View User's Profile U2U Member Reply With Quote
Hey peeps!
Just a genral question really.I have a full stainless system but i still have the cat. Whats the score with de cat is it worth it?+if so once its in is it just a case of re setting da ecu by leaving the battery dis connected over night then allowing it to run in the morn for 5min?

Thanks for any help
ed
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Registered: 10th Sep 03
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5th Nov 04 at 20:06   View User's Profile U2U Member Reply With Quote
ECU is self learning so there is no need to reset it.
philly willy
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Registered: 13th Jun 02
Location: DARLINGTON
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5th Nov 04 at 20:20   View User's Profile U2U Member Reply With Quote
thats that sorted but as far as the whole power increase goes does a de cat affect it much?just i have had mixed opinions??
broster
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Registered: 6th Dec 02
Location: Drives: E39
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5th Nov 04 at 20:22   View Garage View User's Profile U2U Member Reply With Quote
decat and exhuat wil lgive minimal gains unless the car is mapped for it!
Joff
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Registered: 17th Oct 00
Location: Cambridgeshire
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5th Nov 04 at 20:28   View User's Profile U2U Member Reply With Quote
Will sound better with a decat and a replacement cat costs a bit, so stick a decat on and swap over the cat pipe when needed.

Alternatively... stick in a C20XE from a pre-92 registered car and you don't need a cat
philly willy
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Registered: 13th Jun 02
Location: DARLINGTON
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5th Nov 04 at 20:41   View User's Profile U2U Member Reply With Quote
but if the ECU is self learning then surely it means that it will no the cat has gone and alter all the fuel ratios??unless those ratios are set?
broster
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Registered: 6th Dec 02
Location: Drives: E39
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5th Nov 04 at 20:43   View Garage View User's Profile U2U Member Reply With Quote
it will only alter to a certain amount, or people would run throttle bodies on standard management. for the record you ecu will learn faster if you "reset" it
philly willy
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Registered: 13th Jun 02
Location: DARLINGTON
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5th Nov 04 at 20:50   View User's Profile U2U Member Reply With Quote
thats what i was wundering
cheers mate!
think i will get a de cat just for the minimal differance that i will feel
broster
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Registered: 6th Dec 02
Location: Drives: E39
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5th Nov 04 at 20:51   View Garage View User's Profile U2U Member Reply With Quote
yeah i got one just so my cat lasts longer lol
philly willy
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Registered: 13th Jun 02
Location: DARLINGTON
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5th Nov 04 at 21:04   View User's Profile U2U Member Reply With Quote
lol i was thinking along the same lines coz my cat is looking a little tired

 
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