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blowing exhaust give this much loss of power?


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hello everyone, iv just changed the cat on my 1.4s loop 1999 and it has lost all power! the exhaust is blowing from the join to the mid section, would this cause massive power loss? it feels slower than my 1.0.

the weird part is when it gets to about 3.5-4k revs it picks up like normal?

any ideas guys?

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How the **** are you getting an Inch difference, surely you would have noticed that when fitting it.

That not even close

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like a widow maker wheel jack ? and you went under the car ahah brave man

I guess when engine was getting to like 4k the gasses were flowing fast enough to make the inch gap

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like a widow maker wheel jack ? and you went under the car ahah brave man

I guess when engine was getting to like 4k the gasses were flowing fast enough to make the inch gap

widow maker wheel jacks are what split the men from the boys :P

or at least the stupid men from the clever boys haha!!

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OK so after getting the exhaust sorted. Still not getting the power I was expecting over my 1.0 after doing a bit of reading I've seen that the throttle body can cause some power loss and a spluttery idle. This is what I'm getting and when I accelerate from lights or a junction it stutters and then decides to go. Its quite unnerving sometimes. Help?!

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right! cleaned the throttle body and checked for air leaks in the process! success! it was sorted. now its idleing very rough, and sometimes just splutters randomly, after a read im thinking its the temp sensor? would you agree?

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right! cleaned the throttle body and checked for air leaks in the process! success! it was sorted. now its idleing very rough, and sometimes just splutters randomly, after a read im thinking its the temp sensor? would you agree?

Could be the carb cleaner which is causing the splutter. Did you get this sorted?

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ashh : i have changed the temp sensor to no avail!, i was going to get a 2nd hand coilpack from a friends loop hes braking,

lupoluke : changed the cat because it failed emissions.

iv got a vag com but cant get it to work, ill have another look at it

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ok got the vagcom to work! i ran 3 tests after clearing the first lot of codes (after iv had the engine in bits for months) heres what came back.

has someone removed the EPC light?

Monday, 01 July 2013, 19:13:32.

VCDS-Lite Version: Release 1.2

Control Module Part Number: 036 906 014 AMu

Component and/or Version: MARELLI 4CV 2801

Software Coding: 00001

Work Shop Code: WSC 01236

VCID: D0D3734303FB

8 Faults Found:

00519 - Intake Manifold Pressure Sensor (G71)

28-10 - Short to Plus - Intermittent

00518 - Shareware Version. To Decode all DTCs

30-10 - Please Register/Activate - Intermittent

00530 - Shareware Version. To Decode all DTCs

30-10 - Please Register/Activate - Intermittent

00525 - Oxygen (Lambda) Sensor (G39)

07-10 - Signal too Low - Intermittent

00513 - Shareware Version. To Decode all DTCs

27-10 - Please Register/Activate - Intermittent

00609 - Shareware Version. To Decode all DTCs

29-10 - Please Register/Activate - Intermittent

00610 - Ignition Output 2

29-10 - Short to Ground - Intermittent

00282 - Shareware Version. To Decode all DTCs

26-10 - Please Register/Activate - Intermittent

---------------------------------------------------------------------------

Monday, 01 July 2013, 19:15:20.

VCDS-Lite Version: Release 1.2

Control Module Part Number: 036 906 014 AMu

Component and/or Version: MARELLI 4CV 2801

Software Coding: 00001

Work Shop Code: WSC 01236

VCID: D0D3734303FB

1 Fault Found:

00513 - Engine Speed Sensor (G28)

27-00 - Implausible Signal

---------------------------------------------------------------------------

Monday, 01 July 2013, 19:19:43.

VCDS-Lite Version: Release 1.2

Control Module Part Number: 036 906 014 AMu

Component and/or Version: MARELLI 4CV 2801

Software Coding: 00001

Work Shop Code: WSC 01236

VCID: D0D3734303FB

1 Fault Found:

00513 - Engine Speed Sensor (G28)

27-00 - Implausible Signal

-------------------------------------------------------------------------

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