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by vtl
23 Jun 2022, 12:42
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Re: Vida CEM swapping

C compiler/toolchain - to program devices. Some assembler - for which CPU it doesn't really matter, they are all alike, but you have to know how CPU operates on low level. Disassembler for the target CPU. I lately use https://onlinedisassembler.com/odaweb/ for !x86. PDF reader - to read datasheets :...
by vtl
05 Jul 2022, 13:58
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Re: Vida CEM swapping

You can, the code is k-line ready, however the pin compare routine in this CEM is written in a way that defies our timing attack. I've spent a great deal of time looking at it, and failed to come up with anything.
by vtl
17 Jul 2022, 20:28
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Re: PCV service turns into oil pan work.

Slacken the 3x M8 bolts on the VVT hub. They still should hold the sprocket, but you will need it later for fine tuning the angle. Attach the hub to the camshaft approx 90 degrees CCW to the marked position. Slightly tighten the big bolt. Rotate the hub CCW until the hub has no free play and you've ...
by vtl
19 Jul 2022, 16:49
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Re: Vida CEM swapping

T5Luke wrote: 19 Jul 2022, 16:47 Now the CEMs -2004 are missing :D
If you brave enough to read through the thread, I've attempted to do that. But Volvo hired either a bad programmer or a brilliant one, and their pin compare code is not vulnerable to timing attack ;)
by vtl
27 Jul 2022, 07:38
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Re: 06 S60 2.5T AWD ran out of fuel and now won't run

I had a CEM relay failure in 2005, the one for feeding power to BCM. According to the datasheet, that relay should have lasted over 100 years, but it happened much sooner. Thanks to Volvo, previously a plug&play $15 relay replacement is a nightmare in L-shaped CEM: they are soldered. Your invest...
by vtl
01 Aug 2022, 14:26
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Re: Vida CEM swapping

oscilloscope wrote: 01 Aug 2022, 14:21
vtl wrote: 01 Aug 2022, 14:19Teensy 4.0.
ugh the only one not in stock my luck
4.1 may work as well, it is based on the same chip.
by vtl
04 Aug 2022, 09:04
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Re: 2007 xc70 So what would cause brakes to be down to the floor? They say my brakes are fine, Now

vtl has mentioned dealer required to bleed air from ABS. Is that something we can do from vida? Curious about that. Absolutely. Trigger inlet/outlet valves of the line you're bleeding with Mityvac or vacuum pistol. 1.png Well, pumping a pedal may actually work as well. I just was doing it with a pi...