Celica ST205 -- not boosting properly?
Discussion
My '95 GT-Four ST205 developed an interesting issue the other week, while on a long drive down to Portsmouth.
I was accelerating on the motorway and my boost controller's gauge showed me as getting to a peak of 1.12 bar (which is roughly where I have it set as the max boost -- it's a Blitz SBC-iD III boost controller and power meter)
As soon as it hit 1.12, the car kind of "jerked" a bit as if the boost had suddenly dropped off, and from that point on, it will now not boost over 0.5 bar in any gear and struggles to even get there in 3rd-5th. The boost controller screen didn't flash red in the same way that it does when I hit my warning threshold.
What's likely to be the cause of this? I'm assuming if the turbo itself had screwed itself up, that I would hear all sorts of horrible noises coming from the engine bay, so I'm hoping that it's just that a hose popped off under the boost pressure or something like that.
The car is running on stock internals, except for a Blitz Access ECU, the aforementioned boost controller (with TVSV disabled) and a HKS SSQV blow-off valve.
Seems unlikely that I would have hit fuel-cut, but if I have, do I need to disconnect the battery to reset it? No engine management light came on, so I'm assuming there's no error codes stored.
I was accelerating on the motorway and my boost controller's gauge showed me as getting to a peak of 1.12 bar (which is roughly where I have it set as the max boost -- it's a Blitz SBC-iD III boost controller and power meter)
As soon as it hit 1.12, the car kind of "jerked" a bit as if the boost had suddenly dropped off, and from that point on, it will now not boost over 0.5 bar in any gear and struggles to even get there in 3rd-5th. The boost controller screen didn't flash red in the same way that it does when I hit my warning threshold.
What's likely to be the cause of this? I'm assuming if the turbo itself had screwed itself up, that I would hear all sorts of horrible noises coming from the engine bay, so I'm hoping that it's just that a hose popped off under the boost pressure or something like that.
The car is running on stock internals, except for a Blitz Access ECU, the aforementioned boost controller (with TVSV disabled) and a HKS SSQV blow-off valve.
Seems unlikely that I would have hit fuel-cut, but if I have, do I need to disconnect the battery to reset it? No engine management light came on, so I'm assuming there's no error codes stored.
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