Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
right iv just spent the day fitting a powerbox to my astra 96. iv used a tigra lower inlet then a powerbox on that.
got everything fitted on and started and the car revs at about 3-4k then shoots up till i have to turn it off.
does anybody have any idea whats doing it?
really need to sort it tomorrow as i need the car for work and i dont really want to swap all the bits around again
|
tom_simes
Show Staff
Organiser: South Wales
Premium Member
Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
User status: Offline
|
There will be an air leak around the inlet somewhere, Steve X16XE had exactly the same problem.
|
Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
on the inlet manifold or on the pipes that come off the powerbox would you think. just would like to track it down to a certain thing that may be causing it
|
Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
|
did you fit a new inlet gasket?
|
mattievRS
Member
Registered: 20th May 06
Location: Leicester
User status: Offline
|
air leak from the map sensor or between the powerbox and inlet manifold.
|
Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
new inlet gasket went on the manifold to the block and from the powerbox to the manifold
saying about gaskets i didnt put one egr blanking plate and the manifold so that could be the air leak?
|
mattievRS
Member
Registered: 20th May 06
Location: Leicester
User status: Offline
|
if you have taken the egr off then yes but if its still there then not really needed.id say its around where i said earlier as they only need a small leak to do what yours is doing.
|
Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
right iv checked everything all seems to be ok. put sore instant gasket inbetween the box to the inlet and around the blanking plate.
it idled at about 1.5 k for a min then shot up to 3k
took it for a quick drive to see if anything would settle and it hasnt
any more idea's
|
fazza
Member
Registered: 7th Feb 08
Location: Plymouth
User status: Offline
|
sounds like an air leak i had it when i fitted my manzel to my old one mate. check the gaskets are on correct and everything done up tight
|
Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
i put a new gasket on the manifold to the block and that is tight. and i have just been round and put instant gasket on the rest
|
fazza
Member
Registered: 7th Feb 08
Location: Plymouth
User status: Offline
|
get some carb cleaner and spray it round them bits with car running will help find any air leak
|
matt_aka_smiler
Member
Registered: 7th Dec 05
Location: Stoke-on-Trent Drives: MK4 Astra GSi Turbo
User status: Offline
|
tb to powerbox gasket? did you need to drill the screw threads out to fit it?
|
Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
^^ yeah needed to drill the holes.
just put some instant gasket round the tb to the powerbox and i think there was a leakcoming from there cos now i started it up and it was idleing alright. drove up the ally to go for a test drive and then it started to go from1.5k to 2.5k then back to 1.5 andjust keeps doing that. ivjust got back and let it idle for a min but it still does it
the management light is also now on, i dont know what the paperclip test site is either has anybody got a link
|
matt_aka_smiler
Member
Registered: 7th Dec 05
Location: Stoke-on-Trent Drives: MK4 Astra GSi Turbo
User status: Offline
|
start it with the bonnet up if the revs start raising then try putting a rag tight round the tb + powerbox join thats how i found mine 
|
Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
|
The management lights on because the ecu has completely closed the idle valve, and its still idling too high....
So it thinks the valves faulty and brings the light on.
[Edited on 20-04-2008 by Vaux Lad]
|
Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
|
put your hand down by the throttle body and see if you can feel a leak. you will most probably find that a gasket has gone somewhere or you havent tightened something down fully.
|
Edz.
Member
Registered: 24th Jan 08
User status: Offline
|
thanks for everybody's help.
the car is drivable so i can get to work but still revs up to 2k.
im going to have to leave it to the weekend tho as we are stacked at work
|
Stu_22
Member
Registered: 25th Mar 02
Location: Luton
User status: Offline
|
Start again but use something like this
http://www.decoratingdirect.co.uk/viewprod/b/BITHA6/
Ive just fitted a box using only this stuff and no gakets
Should be able to get it a most spares shops
[Edited on 21-04-2008 by Stu_22]
|
