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Keep it up fellas. I will be joining in the fun soon.
the more the merrier - there are so many systems and functions to sift through and test. we should make great progress as more people hop on the platform .
Last edited by gabylonfive; 09-17-2019 at 01:01 AM.
Anyone figure out if possible to activate rear hatch to close with remote? I tried with someone who has PIWIS2 broke the door, but a quick auto code returned it to factory.
Anyone figure out if possible to activate rear hatch to close with remote? I tried with someone who has PIWIS2 broke the door, but a quick auto code returned it to factory.
I got the same "Write Code Failed" error as OP when trying to code hatch close with remote. Kind of reassuring that it appears the x431 will check plausibility before writing anything, looks like the PIWIS may not do that.
I played a bit with the “online coding” function (on my e46 m3 as I can easily reflash that if I break something, don’t want to brick my DD :P).
It appears that function will check an online server and compare the module’s current assembly (sw) number against an online db to see if there’s a newer version available and flash the car either with the new version or a new copy of the same version. Maybe useful if you need to replace or retrofit a module (not sure if it will then VO code the module or that’s a separate function)
One caveat - I’m not aware if the Porsche modules can be programmed or flashed over CAN the way BMW can. I know the higher end Launch scanners (PAD and Throttle variants) come with a J2534 interface specifically for flashing so I don’t think there’s anything like that built into the VCIs we have.
Based on my research you can use either the V+ or the smaller V Pro - same software just a smaller tablet. The V+ can be expanded to interface with commercial trucks. I think the Diagun IV (android phone-looking thing) also runs the same software so that should work too.
In the end these are just rooted android devices with the diagnostic app preinstalled. You’re really just paying for the software license and whatever size device works best for you.
(1 more reserve....that's it for today. Need to get a charger and hook it up. Manual recommends a fully charged battery before coding. Said it will brick the module if the power cuts out during mid-write. I don't like idling my car.)
Can anyone recommend a good charger for this type of thing? I don't think a battery tender is going to cut it.
OP - for short feature-coding sessions like these, a good 15A charger (
) is probably enough (I would turn off your lights to limit your power draw if you'll be awhile though.) I've used one of these for BMW coding sessions for the past 8 years and have had no issues with it. With that said, I've been doing all of my coding with the cayenne running and haven't had an issue, though I typically wouldn't write anything to the DME while the engine is running. I set one of my cluster gauges to vehicle voltage and just make sure I stay between 13.5v-14.5v (the voltage window you need to stay in during a piwis module flash.)
If we ever get to the point where we're flashing or programming modules though, I'd invest in a good 70A power supply since those are much longer read/write sessions and any big power fluctuation can boot you out of the process and brick your module.
Amazing now the only question is does it support the 2018 Macan S. I've emailed the manufacturer but no answer yet.
Originally Posted by sterod
It would appear the limitations of this system are that of a PIWIS 2. It does not support the 2018 Macan S which would need a PIWIS 3. Dammit, bubble=burst.
Was able to get my hands on a 2018 Macan S this evening . Good news to report, the x431 connects to all modules properly and coding routines are present! I only had about 20 minutes to play around with this one until my buddy and I had to head to dinner, but I was able to browse through some of the modules and enable a few things:
Has anyone confirmed that increasing the max boost in the instrument cluster coding does actually increase the engine boost limit, not just the cluster's boost limit scale? The info above implied it changes the engine's behavior. Anyone test it with a Cayenne turbo?
Has anyone confirmed that increasing the max boost in the instrument cluster coding does actually increase the engine boost limit, not just the cluster's boost limit scale? The info above implied it changes the engine's behavior. Anyone test it with a Cayenne turbo?
I believe the original request to look into the boost parameter in the cluster was from someone running a Cobb tune (increasing boost targets via the engine sw.) I'm pretty certain changing the max boost in the cluster will just allow you to scale the reading properly so you can see your new actuals. Would be pretty sweet if it was that easy to increase boost though (though you'd likely need a new engine after if the DME didn't compensate fuel targets accordingly :P.)
If any CTT owners in the Bay Area want to give it a go I'd be happy to meet up and test.
PCM disclaimer delete would be great in the cayenne. I don't remember if you guys have checked yet.
They have, no bueno.
Do we know which tools from Launch have this capability yet? I see the X431 Pro Mini for $670 and it says it is bidirectional and coding capable. If that is running the same software and has these capabilities it would work fine for me.
09-17-2019, 12:42 AM
. Good news to report, the x431 connects to all modules properly and coding routines are present! I only had about 20 minutes to play around with this one until my buddy and I had to head to dinner, but I was able to browse through some of the modules and enable a few things:
