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From The Saab Tech Wiki
To isolate BPC failures from other sources of boost problems, unplug the electrical connector temporarily, or bypass the valve with a single hose from the compressor to the waste gate. (C to W on the turbo. To make the job easier, the C and W hoses can simply be disconnected from the valve, and connected to each other with a two way hose connector. With the BPC valve out of the picture, acceleration should be smooth and normal up to 6 psi (mid-yellow on the stock boost gauge). If not, the problem is somewhere else.
==Removal and Cleaning== ===Parts===
* BPC valve, 1994-98 7485576
* Screw 8059420
* Hose set 4443859
==Removal and Cleaning=References===* Saab EPC 2-2100 * Haynes Ch 4, section 15
===Access===
