Where the heck can I buy a new TEMPERATURE & OILPRESSURE gauge?

[Larry Bastanza]

Honestly, at this point it is time to find a wreck and take the 1991 gauge out of it.

Also dispite the fact the on line catalog does not say discontinued, I did check yesterday, like all of you, and indeed both the 1991/97 gauges are both discontinued. Sorry about the mis-info earlier.

Regards,
LarryB

 

[Honcho]

Yeah but Larry I wouldn't pull from a 91, since those gauges are likely still within the TSB range for the low reading problem.

 

[K1ng124]

Still nothing?

 

[winreboot]

Still nothing?

I ordered the one for 2004, but it's on back order from Honda. Will have to wait few weeks before getting it. My plan is to see how it will look first with different color gauges. In my head it might actually look cool but only with having both sides replaced. So next thing would be to also change the fuel gauge too if it looks ok. But in practice it might look horrible so will not know until I get my unit. Replacing the needle for me is out of the question as I tend to break anything I touche that small.. lol Last resort will be sending both gauges new and old and have the gauge shop swap the faces.

 

[K1ng124]

Did you order online? Do you have a link?

 

[winreboot]

Did you order online? Do you have a link?

Yes, I got the 2004 gauge online here http://www.acuraoemparts.com when you order in comments type in "nsxprime" and get additional -5% from already low price

 

[K1ng124]

Thanks, Just ordered this one, didn't get the discount though!

 

[Honcho]

Have you figured out how to swap the faces?

 

[winreboot]

Have you figured out how to swap the faces?

I have not but read that the motor shaft has to be hold from underneath of the face as the shaft is usually stuck in the motor and when you pull on the needle it will rip right out of the motor. Heating up the needle helps but if this is successful the shaft might move and true "0" changed, so it will need re-calibration. I don't know how much of that is true but I'll not attempt this my self and leave this to pros

 

[ysoslow]

ordered last week. the parts will arrive here tomorrow. can't wait.

 

[winreboot]

ordered last week. the parts will arrive here tomorrow. can't wait.

You are lucky! I'm still waiting on my... Post some pics how it looks when you get it.

Thx,

 

[ysoslow]

btw... your gauge can be fixed. if you take it out and pull the metal shield, look at where the copper wires are leading to. I believe it is soldered to the pins. Mine broke off that's why my gauge would read hot all the time. If you can, just reconnect it and solder it back. I'm ordering this set as a back up.

a really big box just to ship a really small box lol.

The face is bluish compared to the 91. I don't think it'll bother me much.

 

[K1ng124]

Yay! Should be receiving mine soon!

 

[winreboot]

Here are my pictures. The new gauge colors are much deeper and the needle looks much sharper. It's def a nice upgrade, maybe I'm justifying the buy, but it looks nicer. I'm still waiting for fuel gauge to go with this on the other side.

 

[winreboot]

Did anyone installed their temp/oil gauge? Never a dull moment.. I have installed my temp/oil gauge and the temp goes all the way up. It looks like the temp gauge is not compatible maybe the resistor from the old one have to be moved to this one as it looks different, any input would be great on this.

Update on my fuel/volt gauge. It come in and I have installed that. Those two work good, look good.

 

[rwdforlife]

whoa, that looks amazing. i am thinking about doing the blue conversion on my 91 silver/blk nsx, including the carbon fiber back splash, but i am in search of a black/black nsx, so i might save the money for my next nsx, or i might just keep the silver and do it anyways

 

[nsx711]

It looks like the old temp gauge has a resistor and a diode (the glass device), while the new one has two resistors. Can't tell from pictures how things are hooked up, but maybe switching to the newer temperature sensor is a possibility.

 

[winreboot]

It looks like the old temp gauge has a resistor and a diode (the glass device), while the new one has two resistors. Can't tell from pictures how things are hooked up, but maybe switching to the newer temperature sensor is a possibility.

I don't know the correct terminology but the hookup and the resistors on it are on different side and different color. I think only way to fix it is to move those resistors to the new gauge to make it work. Maybe getting temp sensor from new model nsx and changing it would fix it, don't know. It's sad as all this work for nothing.. can't win lol. It's either have working oil gauge or temp gauge.. can't have both haha.

here is a pic of the resistors in different places..

 

[Honcho]

I honestly think you should try to get the gauge repaired/calibrated at this point. Maybe BrianK is wiling to take a shot? I wish we could find out from Honda what the problem is that resulted in the original TSB on this issue, why the gauge reads out of range. It would make it easier to fix.

 

[nsx711]

The 1991 service manual gives the resistance ranges that the temperature sensor should have as a function of temperature. Maybe someone with a manual for the newer model year can compare the temp sensor information to the old one. Since the old one has a diode in place of one of the resistors, I am wondering if the sensors are different types - that is why I was thinking just replacing the sensor with the newer one would be the easiest path. The wiring diagram does not have enough detail (does not show resistors/diode) for me to tell what is going on. Someone with electronics experience should be able to figure it out fairly easily on the bench.

 

[stevenlee]

I'm looking for a '94 oil pressure gauge.
Interestingly, it is neither the earlier or later model shown in the photo in post #39.
It has the "kg cm2" of the '91 and the shorter lines of the newer gauge pictured in psst #39.

Here's a pic of my '94 gauges.

 

[A.S. Motorsport]

I am 99.9 % sure it will be fine, although I have not done it. What I looked for was a change in the gauge face/color/needle etc. They are identical. The later years 2002+ IIRC are different.

I have seen Honda do this before, not backdate the parts list for older years, even when they discontinue the original part#.

HTH,
LarryB

correct 2002+ have blue faces altough the mechanisme is the same iirc

- - - Updated - - -

I'm looking for a '94 oil pressure gauge.
Interestingly, it is neither the earlier or later model shown in the photo in post #39.
It has the "kg cm2" of the '91 and the shorter lines of the newer gauge pictured in psst #39.

Here's a pic of my '94 gauges.
View attachment 100518

That's a JDM gauge

 

[stevenlee]

correct 2002+ have blue faces altough the mechanisme is the same iirc

- - - Updated - - -


That's a JDM gauge

These are the matching gauges on the right side.


I'm surprised that a JDM gauge found its way into my domestic '94.
The two former owners were against any modifications to the car.


Does anyone know if this '94 / "JDM" oil pressure / water temp gauge is available, new or used anywhere?
If so please send me a PM.

 

[Honcho]

These are the matching gauges on the right side.
View attachment 100520

I'm surprised that a JDM gauge found its way into my domestic '94.
The two former owners were against any modifications to the car.

View attachment 100521
Does anyone know if this '94 / "JDM" oil pressure / water temp gauge is available, new or used anywhere?
If so please send me a PM.

Honda updated the USDM oil pressure gauge three times:

The first replacement was 78150-SL0-003, which looks just like the 91 gauge (blue "cold" line, long hash marks), but fixes the low oil pressure reading problem that was the subject of TSB 91-008 and affected cars 00887 to 03162. This part is discontinued and no longer available new.

Next was 78150-SL0-J01, which looks like the gauge you have in your car. This is the part for 97-01 NSX models, and the "J01" designation means it is a Japan-order only part. This part is discontinued and no longer available new.

Finally, there is 78150-SL0-A03, which is the blue-faced gauge Winreboot bought and is for 02-05 NSX models. This is a USDM part and available to order, but it looks like you also have to buy the 02-05 temp sender to get the water temp gauge to work correctly.

 

[winreboot]

I might as well try the new temp sensor. haha I check how it looks and the new sensor had 2pin connector and the old one has only 1 pin. I guess the second pin is just ground, so it should be fine. But I'm guessing don't know for sure. In pictures it looks different, hope the thread on it is the same. For testing I check the resistance on fuel/battery gauge for my old gauge and new style gauge and the difference was in thousands but when I check the temp/oil new and old the I was getting different readings on temp and oil resistance. So to me it would mean that new fuel/battery is the same gauge as old one but temp/oil has defiantly different internals.