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Sept 12, 2015 11:42:47 GMT
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Can anyone help with the retro fit of an oil pressure gauge? The sender and gauge connections are below, the gauge needs 2 feeds from the sender (sensor - and +) but it also needs a feed from both connections of the warning light.   The sender has 2 connections, Gauge and Warning Light. Is one of these, "Sensor -" or is it the wrong sender for the gauge?  The ideal solution is to remove the car's original warning light sender and replace with this new one that does the gauge and warning light together. |
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benjy_b
Yorkshire and The Humber
Posts: 409
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Sept 12, 2015 12:07:53 GMT
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WK = Warnkontakt (presumably, warning contact) A quick google search ( link) reveals this:  |
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Last Edit: Sept 12, 2015 12:15:08 GMT by benjy_b
2005 Subaru Forester 2.5XT
1999 BMW E36 318i Touring with OM605 Mercedes Engine
1996 Lada Riva with Honda S2000 Engine
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Sept 13, 2015 19:27:34 GMT
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Yes, I think the problem is that the gauge wiring is different to that diagram. Think I've made sense of it though!
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frag
Part of things
Posts: 335
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Sept 13, 2015 19:58:27 GMT
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the gauge needs 2 feeds from the sender (sensor - and +)
This is not correct,
Gauge needs an ignition live to +
Earth connection to -
Then the terminal marked G to the G on sender,
(So only 1 wire between sender and gauge)
Sender earths thru engine.
Warning light needs an ignition feed to bulb,
Other side of bulb to WK terminal
(Which will be an earth with no pressure,thus lighting the bulb)
The wiring diagram with gauge is confusing at the best !
Sensor ground / sensor signal ?
Sensor signal is a ground,sensor grounds itself.
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Last Edit: Sept 13, 2015 20:07:22 GMT by frag
'69 Holdsworth bay
'88 T25 Panel van
‘72 beetle
‘78 vw champagne T2
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Sept 13, 2015 22:11:52 GMT
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Anybody know if those combined pressure and warning light senders are available separately in ford fitment 1/8 NPT I think
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benjy_b
Yorkshire and The Humber
Posts: 409
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Sept 13, 2015 22:25:59 GMT
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Anybody know if those combined pressure and warning light senders are available separately in ford fitment 1/8 NPT I think  |
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2005 Subaru Forester 2.5XT
1999 BMW E36 318i Touring with OM605 Mercedes Engine
1996 Lada Riva with Honda S2000 Engine
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hario
Part of things
S202 C300STD
Posts: 421 
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Sept 14, 2015 11:37:04 GMT
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Can anyone help with the retro fit of an oil pressure gauge? The sender and gauge connections are below, the gauge needs 2 feeds from the sender (sensor - and +) but it also needs a feed from both connections of the warning light. The sender has 2 connections, Gauge and Warning Light. Is one of these, "Sensor -" or is it the wrong sender for the gauge? The ideal solution is to remove the car's original warning light sender and replace with this new one that does the gauge and warning light together.
G - Gauge (pressure transducer, wire to gauge readout [labelled as sensor])
WK - warning light (low oil pressure switch [wire to warning light])
The gauge must also be earthed to the engine block for reliable readings.
Which bit are you confused by?
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*S202 C300TD Wagon*
Installed:
OM606 & 722.6, Evo6 IC, S600AMG callipers & 345mm rotors. No catz. Leatherish seats.. Rust..
Future:
DIY manifolds & turbo compound build.
Built IP, & some kind of software. Less rust..
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Sept 17, 2015 5:32:25 GMT
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I was confused by "Sensor minus"
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hario
Part of things
S202 C300STD
Posts: 421
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Sept 17, 2015 9:55:24 GMT
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It says on the key: Pin 3 - Signal Ground - blue/black. Basically the sensor and gauge must be earthed together then to GND because there may be a potential difference between body ground and engine ground for various reasons, and the gauge measures such a small voltage across the sensor that it could drastically alter the readout  |
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*S202 C300TD Wagon*
Installed:
OM606 & 722.6, Evo6 IC, S600AMG callipers & 345mm rotors. No catz. Leatherish seats.. Rust..
Future:
DIY manifolds & turbo compound build.
Built IP, & some kind of software. Less rust..
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