dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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not often, but yer - gun shots when changing down a gear, and nearly as bad when just on over rev.
only started in the last month or so - however much i bum the sound when it dus it - is it bad???
tar muchly
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Kurt
Member
Registered: 23rd Oct 05
Location: Hi
User status: Offline
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just unburnt fuel igniting on the hot exhaust, could be overfueling
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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or a missfire thats causing unburned fuel to enter the exhaust.
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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well i dont have a middle silencer any more so mebe its slowly getin lowder as the inside wears in?
tah muchly
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valverguy
Member
Registered: 9th May 06
User status: Offline
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i used to make one of my cars slightly overfuel for pops n bangs its fun enjoy it!
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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and will eventually destroy an engine, as well as lose you lots of power.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Its probably already destroyed your cat.
If its a fuel injected engine(with std management) shouldn't be getting unburnt fuel enter the exhaust system, unless its got a problem such as cts faulty, or air leak in the exhaust.
[Edited on 20-02-2007 by Vaux Lad]
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Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
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Yea you shouldnt really enjoy it unless you really have money to burn.
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Superlite Ltd.
Member
Registered: 9th Jan 07
User status: Offline
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Great sound, i love it...
but your engine doesnt love it lol
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valverguy
Member
Registered: 9th May 06
User status: Offline
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My car didnt have a cat. And my car believe me ran sweet as a nut. used to bubble and pop when i came of the throttle. beautifull sound!
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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doesnt do it constantly - only around 2000 revs or really low like 850 while rolling along.
havent lost any power and could possibly be a gap in exhaust (because i've had to putty part of it thanks to a rock   )
how can i stop it overfueling? reset ecu or sumink?
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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If the exhaust is leaking, the lambda picks up oxygen, and richens the mixture.
Causing unburnt fuel to enter the exhaust.
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