| Hi All, My 94 TT has about 68k miles on it. JWT ECU, and 14 psi
boost jets (.045). (Is this boost level within the margin of
safety with a JWT ECU?) Not long ago I discovered that the turbos produce a
whirring/whining noise when the car is cold, driven at very low
RPMs. I've found contradicting reasons for this. 1) Some say
it's normal when the car's oil is still cold. and 2) The turbos
have oil residue built up in the lines, restricting flow. Which is more likely? Is there an easy fix? Lots of labor? Second issue: It seems that while the car holds boost just fine
at 14 PSI, once I hit about 5-6k RPMs, it feels as if the car
just suddenly loses capacity to sustain torque. Noticable in
2nd and 3rd. Almost as if injectors are cutting out or
something. Note: I had an injector fail not long ago, and had it replaced.
Perhaps indicative that the others are likely failing or about to
go as well. All comments/thoughts appreciated. Thanks!
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