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Old Sep 9, 2007 | 01:41 PM
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Default boost problem

when in 5th doing 80 if i excelerate if feels like im pressing the pedal on and off. if that makes any sence,its totaly standard apart from prodrive

Last edited by phil_1773; Sep 9, 2007 at 01:48 PM.
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Old Sep 9, 2007 | 03:58 PM
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From: cork in ireland, hidding from the p!gs
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I'm having the same problem aswell !!! anyone got any ideas. 00 classic
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Old Sep 9, 2007 | 08:35 PM
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wonder what it is its driveing me
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Old Sep 9, 2007 | 08:42 PM
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mine is a 2000w clasic
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Old Sep 9, 2007 | 09:33 PM
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usually the boost control solenoid. clean it in test mode along with the pipework with aerosol brake cleaner. if that doesn't work, get a new one.
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Old Sep 10, 2007 | 09:53 AM
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From: cork in ireland, hidding from the p!gs
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cool, going to try that this morning,

interesting both of our cars are 2000 classics,

i saw some where about changing it for a 3 port solenoid, just wondering as i one from an old 95 i had ,

how would i go about changing, where does the 3rd one come in to play ??
thanks

buxs
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Old Sep 10, 2007 | 10:47 AM
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Happened on my W reg 2000 turbo, was the solenoid, just needed cleaning out, though if you have any modifications that can cause overboosting which is similar.

Tony
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Old Sep 12, 2007 | 07:03 PM
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went for a drive today and it felt like the turbo wasent comeing it at all im getting verry anoyed now
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Old Sep 12, 2007 | 09:16 PM
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any help pm me if anyone has any help
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Old Sep 12, 2007 | 11:38 PM
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As you say you have the Prodrive performance pack then I assume you are running on super unleaded? If so then being a 2000 car the most likely candidate would be the air flow sensor under-reading as they are a bit rubbish. If this sensor hasn't been replaced in the last couple of years then you should probably replace it as a matter of course ( around £70 from main dealer ).
Kevin

Phil, your last post saying the turbo doesn't seem to be coming in at all does point more towards the boost solenoid sticking.

Putting a 3-port boost solenoid on a 2000 car requires a re-map of the ECU and the finer control it gives over the 2-port solenoid is only of any practical use if you are going for some serious tuning

Last edited by c_maguire; Sep 12, 2007 at 11:57 PM.
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Old Sep 12, 2007 | 11:53 PM
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do you mean the maf sensor? if that is gone then wont it do that in every gear and not just 5th at 80mph?
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Old Sep 13, 2007 | 12:13 AM
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When I first bought my 2000 car it was standard and seemed to drive alright, apart from being a bit gutless ( problem with all standard UK cars! ). When I stuck the Prodrive kit on it would hold back particularly when flooring it in 5th at around 100mph. Sometimes did it in 4th but not always, I assume because there is less load on the engine. Anyhow, a new Maf sensor solved it and smoothed out a slightly rough feel during gentle driving which until then I'd thought was normal.
Kevin
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Old Sep 15, 2007 | 08:19 PM
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could i cleen the maf with carb cleener first
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Old Sep 15, 2007 | 09:30 PM
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Probably not the problem but its worth noting the TD04 spikes like a **** in 5th at about 80.. I was having real problems with fuel cut, boost gauge was showing 1.4-1.6 bar ! I've fitted a HKS EVC now, set it to 1.35bar and its spot on
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