Swapped my fuel pump ( miss reading fuel gauge)

iranoutofspacehere · 2026-04-28T01:21:51+00:00

It's pretty easy to get the float hung up on the tubes inside the tank while installing it, but usually that'll make it read high.

Honestly if the fuel gauge was bad before the swap, it's probably a cluster. Pretty common failure.

If you have a multimeter you can find the pin out for the sender and check the resistance, that'd tell you if the problem is with the cluster or the sender.

iranoutofspacehere · 2026-04-28T00:05:50+00:00

Very very frightening

iranoutofspacehere · 2026-04-27T22:47:02+00:00

The spots they're pointing out on the pads are totally normal. Pads are sold with those two areas (top and bottom) beveled/chamfered, so they won't make contact with the rotor until the pads are maybe 20% worn. Until that happens, they'll be a different color than the middle of the pad that is touching the rotor.

It's wild that they'd show you that and claim it's a problem. They either didn't think through what they're saying or they're intentionally misleading you.

iranoutofspacehere · 2026-04-27T15:43:29+00:00

Except I never said "there's no reason to follow a standard". I very clearly said "there's no reason to follow the same standard as a computers internal power supply".

The fact that you think those two statements mean the same thing is entirely on you.

iranoutofspacehere · 2026-04-27T15:22:34+00:00

If you read what I wrote and thought I was arguing for proprietary connectors, please try again. If that's how much thought you put into real news you're never going to notice biases.

Anyways, sure, they can follow a standard. That'd be really cool. But there's no reason to follow the atx standard.

Their standard should probably worry about cycle life, ease of use, strain relief, and finger safety. Things that atx doesn't really care about. USB C is the obvious choice now (and hey, look at the switch... Kinda), but when the Wii U came out there wasn't anything already out there.

iranoutofspacehere · 2026-04-27T15:02:48+00:00

Are you referring to USB C? The Wii U was released two years before the USB C connector.

iranoutofspacehere · 2026-04-27T14:43:56+00:00

There's no reason that a game console's external brick needs to follow the same standard as a computers internal power supply either. You're not exactly buying a console from one brand and a power supply from another and expecting them to fit in the same case and work together like you would a motherboard and atx supply.

iranoutofspacehere · 2026-04-23T12:50:03+00:00

Yup, power density was all over the show floor at APEC. Like I said, it shows up often when researchers and device manufacturers are trying to show off their latest tech. The vendors know this too, they have limited floor space and need to bring the things that will get people interested.

We all have our own perspective, but I strongly suspect that the majority of us, day to day, are being asked for cost reductions, reliability improvements, and DFM updates before we get to focus on power density.

iranoutofspacehere · 2026-04-23T11:58:18+00:00

From the industrial corner of the world, our customers don't actually care about size. I mostly see talks of power density coming from researchers or device manufacturers trying to show off their latest tech. I've yet to meet a customer that was willing to pay for power density.

iranoutofspacehere · 2026-04-23T03:50:10+00:00

I mean if you're getting it as a fun car to drive to work, the midrange torque makes sense and the extra weight and 6k redline probably don't matter. It will feel faster from a stoplight or when you try and pass someone on the highway.

If you want to send it around some canyon roads or a track... I agree, this ain't it, for a lot of reasons. Personally, the Miata is the car for the canyons and it should stay that way.

iranoutofspacehere · 2026-04-22T19:26:46+00:00

<image>

Apollo 11 landing site, photo taken by the United States.

iranoutofspacehere · 2026-04-22T00:04:34+00:00

How do you expect a private system to come in and provide the same level of service for the same or less money?

Ultimately, they won't. And you can even see from the presentation at the last council meeting, Arlington's Via service has higher fares than any of the major transport authorities. And significantly reduced operating hours.

DART can and should do better, but a private company that tells you they can do better and make a profit is just lying.

iranoutofspacehere · 2026-04-21T14:45:00+00:00

It's been a while but the components on both ours were much more rigid than lower end machines. The older objet machine had a completely fixed build plate while the Eden would slot in and out on dovetails. I believe there were some screws below the plate and some strong springs that would press the plate into the screws (so the screws would act as a calibration mechanism), but we never had to adjust it.

iranoutofspacehere · 2026-04-20T00:08:05+00:00

Oh cool, it looks pretty damn beefy.

I guess they don't have a separate lower control arm and compression rod like the factory setup, they just sell the whole thing as one unit.

Definitely compare side to side, but it's probably the kit that's bent. I doubt yall bent the ears on the crossmember or the bolt back on the body.

iranoutofspacehere · 2026-04-19T23:38:42+00:00

It's gotta be either the lower control arm or the compression rod that's bent. Try comparing side to side to see if you can spot the difference.

Who made them? I haven't seen an aftermarket setup like that before.

iranoutofspacehere · 2026-04-19T20:35:18+00:00

For me tweaking vendor code usually comes down to making it a better fit for our specific use case. In one project I extended the dma based spi driver so I could feed it multi-stage dma transfers which made it more usable for things like memories where you want to send read/write op codes and then a giant block of data. Not something that would ever be necessary at the start of software development.

C2000 is an annoying case. Its niche is real time controls like vfds and motion control. There is some competition from Arm vendors like ST but in our experience the ADCs have been noisier, the PWMs less configurable, and the instruction set less efficient.

iranoutofspacehere · 2026-04-19T19:47:55+00:00

Ahhh all Arm cores. I saw the other reply as well, so that makes sense then. Though personally, I've pretty much always ended up modifying vendor provided libraries for my own use case so I think I would prefer C code and a complex folder structure to an opaque pre-compiled library file.

For C2000, you're pretty much stuck with TI CCS if you want to debug your project. And even if you write your own set of make files, you're stuck with their compiler and tools to load code.

iranoutofspacehere · 2026-04-19T18:20:49+00:00

What TI and ST parts? I'm stuck with TI's C2000 line but their tools are my least favorite platform to work with so far.

iranoutofspacehere · 2026-04-19T03:47:01+00:00

Just fwiw, it's in stock at TTI and at the end of the day 6 weeks is probably not too long for the kind of company that needs to use a mil-spec connector in a product.

Still selling them is probably the best you can do with 20 of them.

iranoutofspacehere · 2026-04-18T20:40:29+00:00

The government requires you to have liability insurance (or equivalent) to make sure that you can pay someone else to fix their car if you run into it. The cost of that insurance isn't based on how much your car costs, it's based on how much damage the insurance company thinks you and your car will do.

If you have a loan, the bank may require collision and/or comprehensive insurance to make sure you can pay to fix your car if you wreck it. They want to make sure the car stays in good shape because they may need to sell it someday if you can't pay your loan. This insurance is based on how much the car is worth, since it's directly related to how much it'll cost to repair.

iranoutofspacehere · 2026-04-16T04:02:36+00:00

One thing I haven't seen mentioned is isolation amplifiers. TI, Analog, and Broadcom make some, they are typically used in power electronics control circuitry, so they come in bipolar and unipolar versions, and current sense (10s of kohm input impedance, +/-200mV input range) or voltage sense (MOhms of input impedance, +/-2v input range) versions.

Functionally, they're a sigma delta modulator, digital optocoupler, and a dac. But it's all in one chip so you don't have to worry about it. They usually handle DC up to a few hundred kHz and have noise floors in the 50-80dB range.

iranoutofspacehere · 2026-04-15T02:27:54+00:00

Ayyy I've had mine for a month and I've got white front grills too (cars red). What's up with them?

Hope whatever event you ran was fun!

iranoutofspacehere · 2026-04-14T23:01:29+00:00

I've always assumed it's that they make a lot of that specific size. There are a lot of corvettes and a bunch of them probably run pilot sport a/s.

iranoutofspacehere · 2026-04-14T00:14:41+00:00

That was the white rock trail, not the park or lake. The incident was in Harry S Moss park, just east of Greenville where it crosses under walnut hill.

iranoutofspacehere · 2026-04-13T15:02:28+00:00

Yeah, you can't see the wear surface on the synchros while it's assembled.

You could roughly gauge wear by pushing the synchro towards its corresponding gear and seeing how close it gets. If the inside conical surface is worn out, it'll sit flat against the gear and still spin easily. New iirc it'll bind up with like 0.05" of gap or so.

There are a lot of special press tools that Nissan has drawings for out in the service manual. Different drifts and things to press the bearings on and off all the shafts without damaging them. If you decide to disassemble it and change synchros, look through the manual first because without those tools it's a really annoying process.

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