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Registered
Join Date: Dec 2008
Location: Melbourne, Aus
Posts: 85
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944 Oil pressure gauge
Hi All, my 89 944 2.7's oil pressure gauge goes straight to the top (5 on the scale) when I start the car and doesn't move from the top until I turn the car off and tap the top of the dash. I disconnected the wires to the oil pressure can but this made no difference - am I missing something or can someone offer some advice. Thank you in advance. JP
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01-09-2009, 12:06 AM
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Registered
Join Date: Mar 2007
Location: Huntsville, Al.
Posts: 228
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It sounds like your oil sending unit has gone bad. Check out Clark's Garage website for an excellent trouble shooting guide to eliminate your gauge as the problem before changing the oil sending unit. When you disconnect the wires from the sending unit the gauge will peg, that is normal. The higher the resistance (open circuit) the higher the gauge will read. So make sure your connections to the sending unit are good and clean.
A.J.
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89 944 Turbo Guru Chip Lindsey Boost Enhancer 3bar Reg. |
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01-09-2009, 04:43 AM
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rob c
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i had very similar prob on my 89 s2 , i just reversed the wires on the pressure sender . works perfect now !!!
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01-10-2009, 06:19 AM
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Registered
Join Date: Dec 2008
Location: Melbourne, Aus
Posts: 85
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Tried the wires (easy things first) no diference. Ordered and fitted a new oil pressure switch - all fixed.
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01-22-2009, 11:21 PM
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Registered
Join Date: Mar 2007
Location: Huntsville, Al.
Posts: 228
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Great! Glad to hear you got it fixed
 A.J.
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89 944 Turbo Guru Chip Lindsey Boost Enhancer 3bar Reg. |
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01-23-2009, 04:28 PM
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1989 Porsche 944s2 3000cc straight 4
