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Author mk4 astra sri "bogging down" when warm help!!!!!!!
R16AN H
Member

Registered: 26th Jun 05
Location: Coventry
User status: Offline
27th May 08 at 16:33   View User's Profile U2U Member Reply With Quote

right,got a really annoying problem,when the car is cold there is no problem at all, but after 10-15 minutes the acceleration seems to loose its pull, and this only happens when the car is warm.now the only thing i have on the engine is a cone filter which i am in the process of changing as i dont like them, other than that im stuck on what could be causing it so any help would be apreciated
Simon_16v
Member

Registered: 14th Aug 06
Location: Yorkshire
User status: Offline
27th May 08 at 16:42   View User's Profile U2U Member Reply With Quote

Any flashing engine management lights when it happens?
R16AN H
Member

Registered: 26th Jun 05
Location: Coventry
User status: Offline
27th May 08 at 16:59   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Simon_16v
Any flashing engine management lights when it happens?


nothing mate, for once i wish the engine management light would come on!
eug
Member

Registered: 11th Mar 08
Location: brigg/n lincs
User status: Offline
27th May 08 at 17:15   View User's Profile U2U Member Reply With Quote

air flow meter?
Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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27th May 08 at 17:23   View User's Profile U2U Member Reply With Quote

Might just be the daft filter, on my sport iv put the standard airbox on and pulls so much better
carnuts
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Registered: 28th Aug 05
Location: Hertfordshire
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27th May 08 at 19:31   View User's Profile U2U Member Reply With Quote

sounds like the cone is causing a problem to me as said standard airbox derstricted is the best i have seen for the astras

if still no luck another known fault is the coolant temp sensor they dont through up a fault they just make it run a bit rough oh and whilst you there take the throttle body off and give it a good clean makes a world of difference when i do it to mine i do it once a month
eug
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Registered: 11th Mar 08
Location: brigg/n lincs
User status: Offline
27th May 08 at 20:53   View User's Profile U2U Member Reply With Quote

carnuts

how can the coolant temp sensor change the way the car runs? not been funny or owt. just want to know incase its making mine play up
carnuts
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Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline
28th May 08 at 08:05   View User's Profile U2U Member Reply With Quote

tells the ecu what temp the engine is running at like on the astras it can also give a hot start problem when its hot and you stop the car you go to start again and it wont start straight away turns over and over then fires
johnhara1
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Registered: 19th Oct 06
Location: Newcastle upon Tyne
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28th May 08 at 09:04   View User's Profile U2U Member Reply With Quote

It's prob just the cone filter mate. They caused havoc on the old XE lumps due to heat soak.

Cant you get yourself a 2.2 airbox, de-restrict it and put a panel filter in instead?
R16AN H
Member

Registered: 26th Jun 05
Location: Coventry
User status: Offline
28th May 08 at 10:24   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by johnhara1
It's prob just the cone filter mate. They caused havoc on the old XE lumps due to heat soak.

Cant you get yourself a 2.2 airbox, de-restrict it and put a panel filter in instead?


thats what i plan to do mate,just finding one is becoming a problem
any ideas?cheers for the help

 
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