308 GTSi Oil Pressure Gauge - Ferrari Life
 
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post #1 of 7 Old 03-31-2007, 04:49 PM Thread Starter
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308 GTSi Oil Pressure Gauge

My oil pressure gauge reads constantly low, I have a new pressure sensor ordered and will replace it in hopes of remeding the issue. On the other hand it could be the gauge, does anyone know the operating voltage of the sender to gauge? i.e. I assume as the presuure increases the voltage to the gauge does as well, can anyone confrim this. Thanks

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post #2 of 7 Old 04-01-2007, 04:50 AM
 
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Summary of Veglia requirements:
Oil pressure:
Full scale 68 ohms to ground.
Top of red area 360 ohms
Zero PSI 470 ohms
(Reverse scale due to meter mounting upside down)

Temperature:
Bottom of red area 19.7 ohms
Bottom of scale 198 ohms

Fuel
Full 44.5 ohms
? 134.5 ohms
Top of red area 276 ohms
Empty 376 ohms

Voltage
Left end 11.22 Volts
First tick 12 Volts
Second tick 14.6 Volts
Right end 17.7 Volts
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post #3 of 7 Old 04-01-2007, 08:38 AM Thread Starter
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Excellent - Exactly what I was looking for, luckily I have a resistence simulator for work so will test it out. Thanks very much!!

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1980 Ferrari 308 GTSi
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2004 Triumph Bonneville - Cafe Racer
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post #4 of 7 Old 04-02-2007, 09:59 PM
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Odds are, it's your sensor that's faulty, and not the gauge. I just changed mine, and it reads perfectly.

La storia si scrive con un pizzico di realtÓ e molta fantasia

Enzo Ferrari
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post #5 of 7 Old 04-03-2007, 02:21 PM
 
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Quote:
Originally Posted by bernardo66 View Post
Odds are, it's your sensor that's faulty, and not the gauge. I just changed mine, and it reads perfectly.
Palo Alto in California can rebuild your guage.
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post #6 of 7 Old 04-03-2007, 06:26 PM
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Quote:
Originally Posted by enjoythemusic View Post
Palo Alto in California can rebuild your guage.
I changed my sensor...not my gauge.

La storia si scrive con un pizzico di realtÓ e molta fantasia

Enzo Ferrari
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post #7 of 7 Old 04-05-2007, 10:05 PM
 
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Quote:
Originally Posted by bernardo66 View Post
I changed my sensor...not my gauge.
Good for you, but guages DO go bad from time to time.
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