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Author Topic: Exhaust back pressure, exhaust blockage and exhaust leak discussion  (Read 2340 times)

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Marks DTM Calib

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Re: Exhaust back pressure, exhaust blockage and exhaust leak discussion
« Reply #15 on: 10 October 2014, 13:22:52 »
Yep

If the cat to manifold joint was leaking you would get a whole host of issues including 02 readings which are off.
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Webby the Bear

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Re: Exhaust back pressure, exhaust blockage and exhaust leak discussion
« Reply #16 on: 10 October 2014, 15:11:33 »
Quote from: Marks DTM Calib on 10 October 2014, 13:22:52
Yep

If the cat to manifold joint was leaking you would get a whole host of issues including 02 readings which are off.

 :y

I'm struggling to understand this so apologies for banging on

but the pressure coming out of the cat is high (exit - converge). the join is just after it, like in entwoods post.... a leak in a high pressure section...........
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Webby the Bear

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Re: Exhaust back pressure, exhaust blockage and exhaust leak discussion
« Reply #17 on: 10 October 2014, 16:27:42 »
In addition to my last comment.....

If the leak was around the manifold downpipe (before the O2 sensor) would that set a check engine light? And if not what am I looking for on the live data to tell me whether its not working properly (the cat that is)
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