S1 running lumpy as fook on idle....HELP PLEASE!!!
hi peeps
Notished it on the way back from Ford fair last week and was VERY apparent last night....
Car will idle at 1000k but you can see the needle drop 100 revs every 5 seconds or so!! drop the clutch and the revs drop through the floor and just about picks itself up....
Car cut out on me last night twice, and the thing just don;t want to tick over at all sometimes....
Opened the bonnet and checked for air leaks, but none apparent...and car drives fine!!
any ideas at all?? leads and plugs are being replaced next weekend, but not sure wether this has anything to do with the problem!!
and no...i havn't touced anything!!!! ANYTHING!!!!!
CHEERS
KEITH
Notished it on the way back from Ford fair last week and was VERY apparent last night....
Car will idle at 1000k but you can see the needle drop 100 revs every 5 seconds or so!! drop the clutch and the revs drop through the floor and just about picks itself up....
Car cut out on me last night twice, and the thing just don;t want to tick over at all sometimes....
Opened the bonnet and checked for air leaks, but none apparent...and car drives fine!!
any ideas at all?? leads and plugs are being replaced next weekend, but not sure wether this has anything to do with the problem!!
and no...i havn't touced anything!!!! ANYTHING!!!!!
CHEERS
KEITH
Hope you're not changing the plugs and leads yourself?! 
Seriously tho, could be a number of possibilities causing it, try the cheap options first (plugs leads, clean the idle screw).
If its still doing it, run it over to Jamsport and get them to hook it up to the computer and see whats going on and where.

Seriously tho, could be a number of possibilities causing it, try the cheap options first (plugs leads, clean the idle screw).
If its still doing it, run it over to Jamsport and get them to hook it up to the computer and see whats going on and where.
my RST has been doing this since I bought it and cant fiqure out what it is!
its doing my head in, i've had it in to Well Lane Turbos 2 for it, they were shite charged me for work doing then found the fault was still there.
i've changed the airflow metre, plugs, ECU, removed dump valve, disconnected the cold start valve.
Haven't checked for air leaks, (as i dont know how or where to check)
does yours always do it? mine seems to be in morning mostly (when the cars not been used for a while. for the first 10min then it seems to get a lot better.
its doing my head in, i've had it in to Well Lane Turbos 2 for it, they were shite charged me for work doing then found the fault was still there.i've changed the airflow metre, plugs, ECU, removed dump valve, disconnected the cold start valve.
Haven't checked for air leaks, (as i dont know how or where to check)
does yours always do it? mine seems to be in morning mostly (when the cars not been used for a while. for the first 10min then it seems to get a lot better.
Originally Posted by Spiky
inlet manifold leaking???
is it hunting??
check airfilter is on ok??
have you moved anything under the bonnet???
is it hunting??
check airfilter is on ok??
have you moved anything under the bonnet???
Spiky...kind of hunting....certainly not a constant rev like it used to be!!
Clare..wheres Jamsport again!?!?!?!? foirgotten!!
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Originally Posted by Cawood
mine seems to be in morning mostly (when the cars not been used for a while. for the first 10min then it seems to get a lot better.
My 3i does it when hot
Originally Posted by Cawood
my RST has been doing this since I bought it and cant fiqure out what it is!
its doing my head in, i've had it in to Well Lane Turbos 2 for it, they were shite charged me for work doing then found the fault was still there.
i've changed the airflow metre, plugs, ECU, removed dump valve, disconnected the cold start valve.
Haven't checked for air leaks, (as i dont know how or where to check)
does yours always do it? mine seems to be in morning mostly (when the cars not been used for a while. for the first 10min then it seems to get a lot better.
its doing my head in, i've had it in to Well Lane Turbos 2 for it, they were shite charged me for work doing then found the fault was still there.i've changed the airflow metre, plugs, ECU, removed dump valve, disconnected the cold start valve.
Haven't checked for air leaks, (as i dont know how or where to check)
does yours always do it? mine seems to be in morning mostly (when the cars not been used for a while. for the first 10min then it seems to get a lot better.
always been good as gold before!! about 1100 revs constant...warm or cold!!!
Originally Posted by Spiky
maybe a air leak then, if hunting i'd be lookign at manifold.
do you have a dump valve????
brittle pipe broken maybe??
do you have a dump valve????
brittle pipe broken maybe??
don't think water is getting in anywhere as it does it from the time you start the key!! only recently though!!
Originally Posted by Rob@SCC Performance
Sounds like it may be a tad lean at idle, An airleak could cause this to happen,
Best get it checked out though.
Rob
Best get it checked out though.
Rob
Originally Posted by Stu @ M Developments
Stu @ M Developments,
Does it leak oil?
Does it leak oil?
but why would this all of a sudden go liek this?? bloody thing
Originally Posted by keithG666
Originally Posted by Stu @ M Developments
,
Does it leak oil?
Does it leak oil?
*Stu grits teeth and sucks thru them whilst rubbing his chin softly*
20K+ Super Poster.
Joined: May 2003
Posts: 20,599
Likes: 0
From: Ramsgate, Kent Drives: E39 530D Touring
dv should not be open AT ALL at idle...
if it is openeing at all then this can cause exactly the symptoms youre describing (coz its an ai leak and its causing it to run lean)
if it is openeing at all then this can cause exactly the symptoms youre describing (coz its an ai leak and its causing it to run lean)
Originally Posted by McPikie
Originally Posted by keithG666
Originally Posted by Stu @ M Developments
,
Does it leak oil?
Does it leak oil?
*Stu grits teeth and sucks thru them whilst rubbing his chin softly*
Originally Posted by Stu @ M Developments
Camshaft oil seal may be the cause then.
Best let SCC look at her again then.
Best let SCC look at her again then.
But it ALWAYS had a little bit of oil through it!!!! even when it ran perefct!!!!!
Originally Posted by keithG666
Originally Posted by Stu @ M Developments
Stu @ M Developments,
Does it leak oil?
Does it leak oil?
:
Originally Posted by McPikie
Make sure you do the jubilee up nice and tight tho. I didnt and when I hit boost it was like a fucking cannon.
Vrrrooooooom, weeeeeeeeeeeeeeee, pop, ding ding ding

Vrrrooooooom, weeeeeeeeeeeeeeee, pop, ding ding ding

Originally Posted by McPikie
Make sure you do the jubilee up nice and tight tho. I didnt and when I hit boost it was like a fucking cannon.
Vrrrooooooom, weeeeeeeeeeeeeeee, pop, ding ding ding

Vrrrooooooom, weeeeeeeeeeeeeeee, pop, ding ding ding

My suggestion would be to get it to one of the specialists from here as it could be a number of things couldnt it.
Without seeing the car, we can all guess and make suggestions but a check over from an RS specialists will get a result within ten minutes.
Dont know if anyone agrees.
Without seeing the car, we can all guess and make suggestions but a check over from an RS specialists will get a result within ten minutes.
Dont know if anyone agrees.
20K+ Super Poster.
Joined: May 2003
Posts: 20,599
Likes: 0
From: Ramsgate, Kent Drives: E39 530D Touring
agree with lee actually...
in an idea world we'd all take our cars to the garage to get looked at, but not all of us have the time or money to do so...
if it is something as simple as a knackered dumpvalve then keith would feel like a right bellend taking it to a garage for something so simple...
in an idea world we'd all take our cars to the garage to get looked at, but not all of us have the time or money to do so...
if it is something as simple as a knackered dumpvalve then keith would feel like a right bellend taking it to a garage for something so simple...
We would probably charge £10 to tell somebody why there RS is running poor as we would usuallly astablish a fault within half an hour.
Not an expensive thing, after all RS Turbos are not rocket science are they.
Not an expensive thing, after all RS Turbos are not rocket science are they.






