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I'm having this problem too, except in R32 GTST guise.

Sometimes the car will be 'normal' and idle at 2kg/cm (2bar) and be about 4bar after 3000rpm.

But then sometimes after 15-30mins of driving it will slowly make its way down to 1bar at idle, and struggle to go more than 2bar after 3000rpm, which makes me worry. I have seen it go as low as the needle sitting on top of the 0 mark, which is probably like 0.7bar, or roughly 9-10psi.

I hope that it is just the sender being dodgy.

Fixxxer

I don't know why everyone keeps going on about the stock sender being crap. They are one of the best designed units I have ever come across. The most accurate and mostly the longest lasting out of any of the turbocharged cars. Just because it is a common problem now...doesn't mean it's a crappy sender. 17 years old don't forget. If only other things made these days were built to last that long.

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