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  1. #1
    Fast,not furious's Avatar
    Dealing with an OCD

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    Boost problems with new exhaust

    Hi guys,i'm looking for advice/help!
    I'm currently running an S38P with a GIAC hammer map (sorry!),Forge CAI and a newly fitted TBE from ExhaustsUk.

    Since fitting the exhaust with 3" downpipe,sportscat 200 cell,mid box,2.5"pipes and cobra backbox,i've been having problems with loss of power higher in the rev range,and a noticeable loss of torque in high gears. I took the car to my GIAC dealer in Sheffield,who said the engine was overboosting,probably due to the new exhaust.

    I'm not sure what to do,Millteks don't appear to suffer from this,and one forum member has suggested a custom remap,rather than spend any more trying to sort the exhaust. This was also my initial thought,which is why i took the car to the GIAC dealer (Sheffield),but after speaking to him,and his suggestion of putting a stock exhaust on and taking more data logs, i'm just unsure which course i should be taking!

    Someone on the forum also suggested a faulty lambda sensor?

    Any advice would be greatly appreciated!

    Thanks,
    Gary


    S3 Brilliant Red - 340bhp

    Custom Code Phase 2 + PSS, Autotech pump, Hybrid Forge/ITG Maxogen CAI /Reflactagold, Sprint Booster, Forge Quickshift, Forge DV, Denso Iridium sparks, PCV mod/oil catch can, R8 oil filler cap, Sachs performance clutch,Exhausts UK custom stainless TBE, Braille no-weight battery,PIAA mirror white DRL's,exterior + interior leds, AndyMac's Sub upgrade, H&R springs, VMR VB3 18x8.5 gunmetal alloys wearing BF Goodrich G-force 235/40

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  3. #2
    ben@amdessex's Avatar
    1st Gear

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    Morning Gary,

    Without actually looking at the car and checking out all the parameters it would be difficults to say.

    We could list numerous things it could be you could then throw parts at it and waste alot of money till you find the actually problem.

    If you like we could book it in for a daignostic session?

    Ben

    AmD Essex - West Thurrock, Essex 01708 861827- Open Mon-Sat. www.amdessex.com. 1000BHP 4WD Rolling Road-Workshop and Servicing- Mail Order- Chipping/Remapping from �299. Milltek- REVO - Mintex- Forge- SuperPro- KW - Weitec -Eibach- H&R- AP + more!

  4. #3
    Fast,not furious's Avatar
    Dealing with an OCD

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    Thanks Ben,i've had the guys at JBS look at it,it was the fuel pump!


    S3 Brilliant Red - 340bhp

    Custom Code Phase 2 + PSS, Autotech pump, Hybrid Forge/ITG Maxogen CAI /Reflactagold, Sprint Booster, Forge Quickshift, Forge DV, Denso Iridium sparks, PCV mod/oil catch can, R8 oil filler cap, Sachs performance clutch,Exhausts UK custom stainless TBE, Braille no-weight battery,PIAA mirror white DRL's,exterior + interior leds, AndyMac's Sub upgrade, H&R springs, VMR VB3 18x8.5 gunmetal alloys wearing BF Goodrich G-force 235/40

 

 

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