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Re: What are the tools needed to remove secondary turbo...
Hi you need a flat blade screwdriver to undo the hoseclamps, pliers to remove the clamps, and a 14mm socket or spanner to undo the 4 turbo bolts on the exaust, and 3 on the bottom exaust flange
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1997 subaru
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indicates several problems
first is that the scan tool has not got the right protocols for reading the Subaru ECM as there are fuel mixture faults recorded
next check the vacuum hose to the turbo vane actuators and that the vanes are free to move
next check for loose interchanger hoses and holes in the intercooler
My apologies for the delayed response. I am going back to answer - unanswered questions. I have only been on this site for the past 4-months. Questions Posted have exploded (+55%) since joining. I do not know if you still need this information, but I am answering it either way.
I don't know much about Subaru but I expect the turbo wastegate is controlled by vacuum which is switched by the engine management system.
In the old days the turbo wastegate was normally closed and the manifold pressure was fed into a servo which opened the gate at the predetermined pressure.
The new way of doing things is to have the wastegate normally open and the turbo producing no pressure until the engine management decides the time is right and it switches a vacuum supply to a vacuum servo which then closes the wastegate. With this system the wastegate is constantly moving and so is unlikely to give trouble though the vacuum servo sometimes leaks and vacuum lines give trouble.
A fellow I know had a similar problem where the engine check light would light up and he would lose performance. In theory this was because of an overboost condition but the repair shop after fiddling around with it for a week fitted a new EGR valve to produce a cure.
Check that the oil and coolant lines that run to the unit are'nt blocked as is sounds as though its overheating the turbo and its bindind up. I hope this helps.
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