Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
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Just been out changing my fuel filter and spark plugs on the cupra.
Once the filter was fitted I started the engine with the car still on stands, so that I could check for any fuel leaks. All was ok there , but I noticed some pretty bad leaks from my exhaust !
I have a leak at the joint between the cat and centre section , and also on the joint between the backbox and the centre section. These are right on the joints and to be honest the clamps look pretty fucked !
Whats the best way of sorting these leaks , also being a lasting repair ?
Also would these leaks be losing me any power ?
Cheers
Gregor
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Ellis
Member
Registered: 11th Sep 07
Location: Aberdeenshire
User status: Offline
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Split them if you can, re-seal with joining paste and re-new the clamps
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chris_gilly
Member
Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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the leaks cause the lamda to think theres to much/little oxygen in the exhuast gases screwing the mixture/ emmisions up. so maybe its over/under fuelling!, i used to to emmisions checks when i worked in an MOT bay and leaks screw up the emmisions
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Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
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But the leaks are after the CAT so surely its just waste gas escaping ?
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chris_gilly
Member
Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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nope, thats what i would of thought i dont know why but yep leaking exhaust causes dodgy emmisions.
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