oil pressure gauge - Miata Forumz - Mazda Miata Chat Forums
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NA (1989-1997) NA Miata discussion within. The MX5's first generation, the NA, sold over 400,000 units from 1989 to 1997.

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Old 03-08-2012, 10:43 PM   #1
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Default oil pressure gauge

on all my other vehicles I have had the oil pressure would increase and decrease with engine speed on the the guage. My miata jumps up to about 2/3 way to high and doesn't move at all from the time i start it til i turn it off. I think it is just the sender giving only one reading and it is shot, just wondering if anyone else have had this issue. I will probably be buying on at work and change it this weekend when i change my oil since it is near the filter anyway. Thanks for any advice.
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Old 03-08-2012, 10:54 PM   #2
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89-93 are the only NA's with real oil pressure gauges. They switched to the on or off style for 94 on.
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Old 03-08-2012, 11:06 PM   #3
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So it sitting stuck in one spot is normal then?
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Old 03-08-2012, 11:07 PM   #4
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We don't have our own write up here yet, but this should help.

http://www.miata.net/garage/opg.html
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Old 03-08-2012, 11:07 PM   #5
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When running I mean, it goes down to nothing when I turn it off
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Old 03-08-2012, 11:11 PM   #6
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Ok the link you posted pretty much cleared it all up for me lol, I may do that one day and make a working guage.
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Old 03-08-2012, 11:27 PM   #7
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I got so used to the dummy gauge on my 95 that when I started driving the 92 it scared me. It still makes me nervous because I'm not sure what good oil pressure is normally for these cars. In a weird way I like the 95 gauge better. Ignorance is bliss...
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Old 03-08-2012, 11:52 PM   #8
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it was wierd to get used to, but cold start i run 60-80, driving cold its in the 90+ range, and normal operation is generally under over 30 under 60. keep in mind i run 10w40
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Old 03-08-2012, 11:58 PM   #9
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Sounds about like mine, it's just wierd to me that the needle covers the whole spectrum during driving. 60 psi is a huge range. I'm sure it's fine, just going to take some getting used to.
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Old 03-09-2012, 12:16 AM   #10
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I live by if it hits 0 the there's a problem all else is ok
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