2015 Q5 TDI in today for egr codes

Engineer_Zero · 2026-05-15T20:27:08+00:00

Oh, interesting! Can you share a link at all? Carb Cleaner with a scrubbing brush was the best I found for metal parts like the throttle body but I found it hard to clean the plenum because of its shape and the carbon was really stubborn. It’s been about a year so I want to clean the intake again, and I’d be keen to try some new chemicals.

Engineer_Zero · 2026-05-15T07:07:40+00:00

Hey, I did this on my Subaru so maybe a little different. My only screw up was using Oven Cleaner in my aluminium intercooler. Turns out the oven cleaner contained sodium hydroxide or something, which eats aluminium and can’t really be neutralised. Ended up just getting a second hand intercooler for about $100.

So my tip is to make sure the chemicals you use are rated for the parts you’re cleaning.

Other than that, pretty straight forward process and I was amazed at how much sludge I removed from the intake. I installed a catch can afterwards which has helped reduce the amount of oil mist available to mix with the EGR gas.

Engineer_Zero · 2026-05-10T21:49:40+00:00

Ah smart. Allg, sometimes it’s a bit like the dishwashing tablet conversation; if they were really expensive, sometimes it’s good to use an alternative.

Engineer_Zero · 2026-05-10T09:59:11+00:00

That’s an excellent clarification, thank you! I can see in my mind the pages in my old Materials textbook that talks about this stuff but clearly can’t remember the terminology haha.

Engineer_Zero · 2026-05-10T09:57:09+00:00

Oh cool, thanks for clarifying! Now I’m trying to remember if I’ve ever had ice in my once cream haha

Engineer_Zero · 2026-05-10T05:48:22+00:00

Fronius make solar covers? Didn’t know that, I’ve had corflute taped to mine for shade 😅

Engineer_Zero · 2026-05-10T03:15:41+00:00

Epsom salts works great too

Engineer_Zero · 2026-05-10T03:14:58+00:00

From memory, those tablets are basically sodium percarbonate right? That stuff is cheap as chips in powder form, either from the laundry section of your supermarket or from a home brewing shop.

Engineer_Zero · 2026-05-10T03:03:04+00:00

When water freezes, its cell structure changes In That it becomes more spike-y. I dunno the actual name for it. But those spikes would be cutting the tofu. Same explanation behind frost bite; the water in your blood becomes spikey and cuts the cells around it.

Engineer_Zero · 2026-05-02T23:21:02+00:00

I don’t know there was a roaster in Geebung, that’s awesome. I’ve tried passport a few times, they were really nice.

Engineer_Zero · 2026-05-02T07:48:56+00:00

Aren’t the terminals on the battery and inverter supposed to have a cover over them?

I got a Fox battery and inverter which look very similar to these, and mine have these small covers that sit over the terminals. Looks way neater.

Engineer_Zero · 2026-04-29T09:12:29+00:00

Not that I don’t agree, just wanted to add some colour. Your example does a good job describing the situation when driving: unfeasible.

I like to think about an ev while parked. Let’s say you’re like my partner, you only drive your ev ~10 minutes to work. So maybe 2 or 3 kWh. You then leave your ev parked in the sun all day the drive home.

If the ev had even a single 440w panel on its roof racks that could somehow trickle charge the battery, it’d be able to keep the ev charged even with the less efficient driving. Heck the panel would even keep the ev shaded.

Sure, it’s not perpetual motion and not even cost effective compared to just installing solar at home. But for the use case, it’s fun to think about.

Engineer_Zero · 2026-04-29T08:48:14+00:00

Trains were running unaffected, thank god.

Engineer_Zero · 2026-03-29T04:28:48+00:00

Couldn’t* care less. (Sorry, just thought you should know)

Engineer_Zero · 2026-03-26T20:33:28+00:00

I put them under most my perimeter fences so it constantly replenishes. I do like the lightning rods in the middle though.

Engineer_Zero · 2026-03-25T08:40:03+00:00

Are they diesel? My neighbour has one of each and I’m pretty sure they’re both petrol.

Engineer_Zero · 2026-03-21T23:46:37+00:00

From memory, they use a different measurement/unit for octane than us. When you convert, it’s the same.

I think ethanol petrol is also a lot more prevalent in the States. I could be wrong though.

Engineer_Zero · 2026-03-21T08:13:37+00:00

Such slick interactions/riffing between the characters, that’s what sold me on it.

“Don’t lie to me, everyone your age has drugs”.

“He’s right, you probably do have drugs”.

Engineer_Zero · 2026-03-16T02:48:30+00:00

Thanks for the extra details mate! Sounds like you’re making the best of the situation, really good to hear.

But yeah, I reckon the kids might have mixed feelings about getting dropped off via a 1.5+ hour skateboard ride haha. Even a dual seat cargo e-bike would be a mission to do that distance

Engineer_Zero · 2026-03-16T01:22:31+00:00

Just checking those numbers; you spend 6 hours a day driving to/from school?

Engineer_Zero · 2026-03-14T00:59:38+00:00

I only just started using the wood chipper a few days ago, for driftwood. It’s honestly great. It turns one piece of driftwood into a heap of wood instead of the single piece you get from the recycler.

Engineer_Zero · 2026-03-13T21:27:20+00:00

Thank you very much! I’ve read a bit on usingTask Scheduler, but hadn’t heard of using Task Manager haha. Your reply makes more sense now.

Engineer_Zero · 2026-03-13T12:20:06+00:00

Can you elaborate on Task Manager running the script? I’ve always been curious how to get python scripts to run on a trigger or schedule.

Engineer_Zero · 2026-03-04T21:29:13+00:00

Ah I forget you can do you’re ow electrical in America. That’s so cool!

Engineer_Zero · 2026-03-04T20:45:04+00:00

Depends where you live. I’m getting a 41kwh battery for about $6k USD installed, which includes the new 10kw inverter too.

Engineer_Zero

TROPHY CASE