puling the vacum line to the booster will efectivly remove your POWER BRAKE function... old cars didnt used to have power brakes.. and they were heavy... it was a different world... your brakes will work without the booster... but it's hard to work it...
as for your sensor.. I'm not sure what your deal is.. but it's a pressure switch a believe... if there's not enough pressure to keep the light OFF it will go on. so the light should stay on in a FAILED state...
=as
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'89 GT Convertible:
TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit
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