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You or the seller need to be a little more detailed about "engages too fast". On my 2000 which has a different clutch arrangement than the na1 dual plate clutch, the clutch has a moderately narrow friction point and it disengages quickly and engages quickly towards the top of the clutch pedal...

Drew forgot to mention that if you track our car many sanctioning bodies will not permit DOT 5, at least in the brakes even if they are non ABS. Check to see if they have the same restriction for the clutch hydraulics. If you are going to use DOT 5 in the clutch system be sure to make some...

What model year and which measurement caused the failure, or was it all of them?

Yep! The urea is just for the tip of the slave cylinder piston where it contacts the clutch fork. Helps to prevent the 'groink' when you disengage the clutch. If you have never used the Honda urea grease it is rather mal odorous (and kind of expensive) so I might go with Honcho's suggestion...

I suspect that the Cataclean is probably similar to products like Techron which just use a different blend of the distillates that are already in gasoline, just a lot more of the light really volatile stuff. Burns like gasoline so probably safe for the catalytic converter and O2 sensor...

As noted by comtec, CEL is code 2 for the rear O2 sensor. First step in the service manual is to clear the code and see if it reappears. If it reappears, you can go through the full diagnostics as described on pages 11-30 and 11-36 (error codes 43 and 44). The full diagnostic steps can be...

My rear view mirror has developed some flop which results in a rattle when I hit bumps. The looseness is definitely within the mirror, not the attachment to the glass. You can feel it as you flip the little night - day prismatic lever and you can touch the mirror and it moves. Has anybody...

Headlight adjuster would definitely be a Euro thingy :).

Something is fishy! To be clear, the headlights are in the down position and you can hear the right retractor motor running when the headlight is down; but, you can only hear this when the ignition switch is in the run position (engine running)? Perhaps @Heineken can advise whether there is...

If the owner doesn't have documentation, doesn't know or is not being forth coming about repairs, there are little matching number VIN stickers on all the body panels. Checking for those stickers will tell you whether the panel has been replaced or major work was done which obliterated the...

Your description does seem like complete failure of the piston seals on the master cylinder. This allows fluid under pressure to escape back up into the brake MC reservoir so there is no loss of fluid. You just don't build up any pressure in the brake system. 51,000 miles seems a little...

I work from the assumption that the car has been inspected and that you are aware of any vehicle damage issues from accidents. I assume that we are talking about long term ownership issues associated with the older cars (which is really all first gen NSXs). If the vehicle has not been...

As Honcho says, door seals were replaced or the glass has been adjusted. When I replaced the driver side rear door sash on my car I then proceeded to adjust the glass as per the service manual spec. The windows were obviously not set up to the service manual measurements at the factory with...

Also, forgot to mention this. When you turn the ignition key to run; but, do not start, all the warning lights on the dash should come on and then go out after a few seconds. This is a power on self test (POST) for the various modules. If one of the warning lights does not light up during...

The first generation anti lock braking modulators can get noisy / become inoperative. Sometimes this can be rectified by servicing / flushing the system. Just about all NSXs will suffer from slow window operation. As I recall there was a Technical Service Bulletin (TSB) specific to the bobbin...

A scanner will tell you nothing because on the NSX the only system that the OBDII port is attached to is the ECU. Matters not because the SRS system does not display diagnostic codes. The SRS indicator is separate from the other safety indicators in the dash; but, checking for capacitor...

Go here https://www.nsxprime.com/resources/categories/service-manuals.1/ Down load the 1991 service manual. In the Body section page 20-37 you will find details on removing the inner back trim panel. Be aware that the location of the main EFI relay depends on the model year. They are all...

Nice. My solution to the plug pop out problem was hold them in place with a little black silicone seal.

What year is your car because that is an important detail. So, those are error codes 31 and 33 on the EPS light indicating an EPS problem. I don't see any error codes being displayed on the CEL. 31 is power supply problems for the EPS and 33 is a speed signal error. The EPS system is...

It would be really useful to know what the error codes were. This could point you in the direction of something that may be repairable. Officially, nothing on the throttle body is repairable; but, the position sensor appears to be common to other Honda products and I believe that people have...

I am probably on the other side of the fence when it comes to the coils / ignition system. Misfires caused by ignition system problems generally get worse at higher engine load. They don't go away at higher engine load. Honcho is correct that the coil resistance measurements do not...

Backfire occurs when the valve timing or ignition timing is way way off and you ignite fuel in the intake manifold because the intake valve is still open which results in a fireball out the intake. So, I am guessing what you are experiencing are misfires and after fires. After fires are that...

Are you confusing the bolster which is the padded piece which has metal retaining clips along the top with the cover for the footwell? The cover for the footwell has two plastic pins at the front as well as the screws which attach it along the back edge. The pins just fit into two holes in...

The OEM lip is a rather hard flexible plastic with a finish that borders on satin / flat. Your pebbled lip appears to be an aftermarket product, perhaps pebbled to help disguise the inevitable road rash.

I am not understanding the wider foot pedal idea. Wider foot pedals and wide feet seems like an opportunity to press the clutch and brake pedal at the same time. I think the appropriate measure might be to modify the clutch pedal and perhaps the brake pedal slightly so that they are all...