well guys.
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thanks for your responses
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let me give you a little bit more background information on the car
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its a late 1990 black g plate jap tbar turbo, imported into the uk in 1999.
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it has a divine front splitter with a departure logo on
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(not sure if phoneix power ever made body kits though, really wankable to look at
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)
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its basically fully lowered
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(adjustable) with aftermarket oil pressure, turbo and air/fuel mixture gagues that have been installed by previous owners.
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the problem i have got is that i dont totally know to what extent it has been modded and if it has been done in the right way which is why i might be having this problem.
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cause for concern is that the guy i bought it from said dont take it over 5k until the engine has been run in
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(i have pics and receipts that the engine was out and various bits and pieces replaced only 2 months ago.
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he only owned the car for a couple of months and he said he sold it to buy a van) but it appears now that he may have said this because when you actually push it over 6k the problem described earlier happens.
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its annoying cause it just starts to grow horns and then bang the revs just cut out.
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apart from this it ticks over like a pearl, starts healthily first time even in the cold and the engine sounds solid.
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i do not have any problem at all unless im shifting through the gears hard taking it over 6k.
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i was told when bought that the turbo is set to 13psi but when driving it definately overboosts as much as to 15psi in some situations
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(thats if the gauge is accurate)
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when the problem happens accelerating hard over 6k it is a violent cut but it doesnt force me through the windscreen but as stated it is violent.
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the revs and the turbo just cut down
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(instantly) with total power loss and the ecu light comes on.
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(the engine does not stall though) one thing i should mention is that i seem to be able to sustain full boost at revs below 6k without having this problem.
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do you think i should maybe short the two pins out and get a fault code from the ecu.
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if it gives me a stored code maybe this could help you in what the problem might be?
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( just thought id add that it seems that once the fault does happen, the fault does stay with the car even at lower revs
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(intermittently) until you have parked the car and left it off for a couple of hours.
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Once its been left and started its absoultely fine until you push it hard over 6k again)
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regards
ross