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Old 17-06-14, 09:33 PM   #1
geneandbolly
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Default Wanted: N75 Boost Control Valve etc

evenin' all,

is there anyone out there who can lend me an N75 boost control valve and an engine speed sensor for my 1996 s6 to rule out the slight miss it suffers on full boot?

it's an aan engine as you probably know. i'd be happy to pay postage out and for them to be safely returned again.

many thanks,

craig
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Old 17-06-14, 10:57 PM   #2
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More than likely one of the coil packs, they were never the most hardy of items.....
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Old 18-06-14, 09:07 AM   #3
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Are you able to check or have checked the fault codes from the engine?

Even better if you know someone with VAGCOM to check what the car is doing when its running
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Old 18-06-14, 09:17 AM   #4
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yes, good old quattrokid hooked his laptop and vag com thingy up to the car and it came up with three faults: ISV, engine speed sensor and this n75 boost control valve.

i replaced the spark plugs and the misfire that it had even at idle speed has stopped now and only this hesitation at full throttle around the 4500-5000rm range is bothering me.

any thoughts, anyone?

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Old 18-06-14, 09:48 AM   #5
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Quote:
Originally Posted by geneandbolly View Post
any thoughts, anyone?
let it return to nature where it belongs . .

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Old 18-06-14, 10:02 AM   #6
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Quote:
Originally Posted by geneandbolly View Post
yes, good old quattrokid hooked his laptop and vag com thingy up to the car and it came up with three faults: ISV, engine speed sensor and this n75 boost control valve.

i replaced the spark plugs and the misfire that it had even at idle speed has stopped now and only this hesitation at full throttle around the 4500-5000rm range is bothering me.

any thoughts, anyone?

I would go with the engine speed sensor - its rev related i.e engine speed, also relates to missfires too.

(I would also look at the other faults too)

Take a look at this

http://www.s2-audi.co.uk/tech_articl...ecu_faults.htm
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Old 18-06-14, 10:10 AM   #7
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Check the fuses before replacing anything.

Common fuse for ISV and N75
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Old 18-06-14, 05:02 PM   #8
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now that's a point and here's a daft question for you: what i thought was the fuse box (under driver's windscreen wiper like most audis) appears to have just a few relays in there and no fuses. my old a6 had the fuse panel in the end of the dash board at the passenger door (i think), however, my s6 has airbag panels at both ends! any idea where all my fuses live?

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Old 18-06-14, 05:09 PM   #9
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Quote:
Originally Posted by Martc View Post
I would go with the engine speed sensor - its rev related i.e engine speed, also relates to missfires too.

(I would also look at the other faults too)

Take a look at this

http://www.s2-audi.co.uk/tech_articl...ecu_faults.htm
thanks for that link - most of it's gobbledegook to me i'm afraid but understand the items that i asked you about, i think!

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Old 19-06-14, 11:08 AM   #10
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Quote:
Originally Posted by geneandbolly View Post
now that's a point and here's a daft question for you: what i thought was the fuse box (under driver's windscreen wiper like most audis) appears to have just a few relays in there and no fuses. my old a6 had the fuse panel in the end of the dash board at the passenger door (i think), however, my s6 has airbag panels at both ends! any idea where all my fuses live?

One mine the main fuse box is on the drivers side - end of the dashboard, there is a panel which has a cut out so you can prise it off - in there more fuses that you can shake a stick at....!

Just google urs6 fuse panel and you will see some pictures so you can see what I mean.

The fuse box under the bonnet has some random ones like the cigarette lighter
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