1990!!!! Only - Page 2 - 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 02-14-2012, 09:19 PM   #11
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Originally Posted by ruthless_one3k View Post
Wait. So you mean to tell me that a 15 cent potentiometer from radio shack is not an effective way to add 25+ hp???
Worst, 15 cents, ever.
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Old 02-15-2012, 09:52 AM   #12
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Also have a problem with my oil pressure gauge it bounces all over the place. Wher can i find the problem. Maybe thers a loose wire somewhere?
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Old 02-15-2012, 10:04 AM   #13
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Also have a problem with my oil pressure gauge it bounces all over the place. Wher can i find the problem. Maybe thers a loose wire somewhere?
could be at the sensor itself or at the back of the gauge cluster. the sensor is beside the oil filter.
i have my intake off so in this picture you can clearly see the sender unit. but you should be able to get to it without taking the intake off
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Old 02-15-2012, 10:43 AM   #14
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Does the problem seem to go away when you mess with your performance chip?

The oil pressure gauge can act as a bit of a knock sensor. Most knock will cause it to bounce all over the place. I wouldn't expect a stock engine that's well maintained to do that though, it's usually turbo engines.
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Old 02-15-2012, 11:18 AM   #15
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yea I have the same problem sometimes. the wire comes loose since it just dangles there like a foo.

Mazda used a straw to keep it straight, but nothing to hang it on for the 99s.

And yes before anyone asks, I have a stock modified OPG that works and doesn't have fluid. Doesn't help really, I got oil starvation once on track and never noticed it till I watched the videos. a low OPG light would do wonders, I just never get around to it, because I am usually smart enough to check my oil.
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