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Registered User
jay71's Avatar
Join Date: Nov 2005
Location: Evergreen, CO
Posts: 170
Oil Pressure Gauge Issue

Recently had my 930 in for oil, tranny and break fluid change as well as alignment- and when I got the car home I noticed the oil pressure gauge pegs at 5 when the key is turned on. Goes back to zero when key is off, so the gauge isn't "stuck". I've read on other posts that this is what happens when there's a poor connection at the sending unit- or a bad ground at the gauge. Mechanic says the sending unit checks out okay- and he's unable to see any ground/connection issues at the gauge. Was hoping he'd see where something was knocked loose at the last service- but all connections are seem intact. The next step is to pay big bucks for the mechanic to spend a day chasing down the source if the issue which he seems to think lies between sender and the gauge. Before I go that route I'm hoping there's someone out there with some good ideas with regard to areas I should be checking to find the source of this electrical issue? Thanks, in advance, for your ideas.
Old 11-19-2007, 09:00 PM
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Metal Guru
911nut's Avatar
Join Date: May 2001
Location: Michigan
Posts: 2,511
On my SC I accidentally fried my oil pressure gage. After I repaired it I had to "recalibrate" it by disassembling it, removing the needle and re-position it until I got zero with the ignition on and the engine running.
Paul B.
'91 964 Turbo
Port matched, SC cams, K27/K29 turbo, Roush Performance custom headers w/Tial MV-S dual wastegates, Rarlyl8 muffler, LWFW, GT2 clutch & PP, BL wur, factory RS shifter, RS mounts, FVD timing mod, Big Reds, - 210 lb
Old 11-21-2007, 10:49 AM
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