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Old Jul 20, 2015 | 01:33 PM
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DannyZ2008
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Exclamation New 2008 Z owner with small issue

The oil gauge reads 0 at idle and it goes up as i accelerate. Would it be a bad sensor?

Also got a low tire pressure sensor. How can i find out which one stopped working?

Thank you in advance
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Old Jul 20, 2015 | 01:40 PM
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is your oil level good?
and for the tire, do you have TPMS sensor in the wheel?
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Old Jul 20, 2015 | 01:47 PM
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Check your oil levels, it's possible the guage / sensor is bad though, the one in my 06 Z was faulty as best.

For TPMS are any of the tires low on air?
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Old Jul 20, 2015 | 02:46 PM
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yes I do have TPMS. How can I reset it before I try anything else? And oil is good. I don't know if it's normal for the gauge/sensor to behave this way
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Old Jul 20, 2015 | 02:47 PM
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Originally Posted by jzk91
is your oil level good?
and for the tire, do you have TPMS sensor in the wheel?
yes I do have TPMS. How can I reset it before I try anything else? And oil is good. I don't know if it's normal for the gauge/sensor to behave this way
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Old Jul 20, 2015 | 03:27 PM
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Originally Posted by Pengu
Check your oil levels, it's possible the guage / sensor is bad though, the one in my 06 Z was faulty as best.

For TPMS are any of the tires low on air?

How can I check if the gauge is bad? It's not frozen or anything. I pumped gas last night and it still on (TPMS)
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Old Jul 20, 2015 | 05:23 PM
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Originally Posted by DannyZ2008
How can I check if the gauge is bad? It's not frozen or anything. I pumped gas last night and it still on (TPMS)
TPMS: Just as a refresher, TPMS operates on the Z33 through a DIRECT TPMS system which uses actual pressure. TPMS in general triggers the low pressure light if/when pressure deviates by -25% from recommended pressure.

Note: Some TPMS operate on a +/-25% setting to keep people who can't read a tire gauge from blowing up their tires )

To re-set/diagnose it: Set all four tires to 36psi (regardless of specification) and drive on it until the light goes out - usually about 10-15 minutes but sometimes longer depending upon ambient temp. If it does go out, all good, forget about it. Done.

If it doesn't go out, only way to tell for certain which sensor is to take it to a shop that sells tires and they can read the communication between each sensor and the network to determine which is sending a "false negative" (erroneous) signal.

==================

Oil pressure: VQ (DE or HR) engines have a tendency to drop pretty low at varying times. Sometimes as low as about 5psi. That's SOP. However, a zero reading is troubling. The way you describe it flatlining and then jumping suddenly, I'd guess oil pressure sending unit.

First course: (Assuming you've already checked oil level) Change the sending unit. It takes about 10 minutes and costs less than $20 most places.

IF the problem continues, I would suspect - in order - gauge or gauge connection, something internal (like clogged oil passage...uggggh), or worst case, oil pump. But 9 out of 10 times, it's something simple, like the sending unit.

Mic
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Old Jul 21, 2015 | 10:23 PM
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Originally Posted by MicVelo
TPMS: Just as a refresher, TPMS operates on the Z33 through a DIRECT TPMS system which uses actual pressure. TPMS in general triggers the low pressure light if/when pressure deviates by -25% from recommended pressure

Note: Some TPMS operate on a +/-25% setting to keep people who can't read a tire gauge from blowing up their tires )

To re-set/diagnose it: Set all four tires to 36psi (regardless of specification) and drive on it until the light goes out - usually about 10-15 minutes but sometimes longer depending upon ambient temp. If it does go out, all good, forget about it. Done.

If it doesn't go out, only way to tell for certain which sensor is to take it to a shop that sells tires and they can read the communication between each sensor and the network to determine which is sending a "false negative" (erroneous) signal.

==================

Oil pressure: VQ (DE or HR) engines have a tendency to drop pretty low at varying times. Sometimes as low as about 5psi. That's SOP. However, a zero reading is troubling. The way you describe it flatlining and then jumping suddenly, I'd guess oil pressure sending unit.

First course: (Assuming you've already checked oil level) Change the sending unit. It takes about 10 minutes and costs less than $20 most places.

IF the problem continues, I would suspect - in order - gauge or gauge connection, something internal (like clogged oil passage...uggggh), or worst case, oil pump. But 9 out of 10 times, it's something simple, like the sending unit.

Mic

Very helpful!!! Thank you so much!!
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