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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 4,424
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Quote:
Originally Posted by Ronnie's.930
I know you said you tried grounding the overboost sensor/switch, but were is it mounted? I ask, because the part it is mounted to needs to be well grounded. For example, when the switch is in the stock location, if you powdercoat the recirculation housing, like I did, then a wire has to be run from a bare spot on the housing to a good ground point (in order to ground the housing as it is now insulated by the powdercoat). If your overboost switch is now mounted in the intercooler, the intercooler might not be providing a good ground as it is isolated via the hoses . . .
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Your points are right-on for proper operation of the OB switch, but I think 930Guy unplugged the wire from the OB sensor and grounded the wire...thus taking the sensor out of the equation altogether. Probably wasn't necessary since the symptoms don't point to your typical overboost shutdown anyway, but one never knows for sure.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ.
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