Search found 7311 matches

by antus
Fri May 31, 2024 12:37 pm
Forum: Engineering and Reverse Engineering
Topic: E38 Negative Response to read-write ECU
Replies: 9
Views: 252

Re: E38 non communicative ECU

it sounds like someone is flashing something custom in there to intentionally lock people out. BDM will work, that's a hardware way to get the right OS and Param block back on there, you don't need to come through what is likely an intentionally hacked up front door. There is a second BDM port on th...
by antus
Thu May 30, 2024 10:31 pm
Forum: Wiring
Topic: VY Bench Harness Battery Amps
Replies: 1
Views: 67

Re: VY Bench Harness Battery Amps

v6 or v8? Not that there is much difference in the answerr. In general you want closer to 13v, and a genuine 2 amps or so (it'll only use .8 but you want headroom). And not a cheap wall style plug pack which more often than not is very electrically noisy and often causes erase failures. You're best ...
by antus
Wed May 29, 2024 6:20 pm
Forum: Off Topic
Topic: VF Commodore Steering Rack
Replies: 14
Views: 4071

Re: VF Commodore Steering Rack

can you take a short table with it at centre, then turn it half way left, take another sample, fully left, another sample, same for right? Should be enough to see what numbers are going up and down with the steering angle, and get you the value for centre, full left and full right. Some kind of peri...
by antus
Wed May 29, 2024 5:04 pm
Forum: Engineering and Reverse Engineering
Topic: E38 Negative Response to read-write ECU
Replies: 9
Views: 252

Re: E38 non communicative ECU

It sounds like writing the key didn't work. Try FFFF as the key (blank segment in the chip is all FFFF). Failing that, brute force to see what's going on, and failing that, or if it is blank and VIN and other data is missing use BDM to re-write the whole flash.
by antus
Wed May 29, 2024 4:59 pm
Forum: Holden ALDL ECUs
Topic: How do we program a Holden BCM?
Replies: 4
Views: 252

Re: How do we program a Holden BCM?

Fan temp settings in PCM? Yes. PCM = Powertrain Control Module ECM = Engine Control Module ECU = Engine Control Unit TCM = Transmission Control Module VCM = Vehicle Control Module(s) BCM = Body Control Module But its somewhat vendor/manufacturer specific, and essentially ECM/ECU/PCM/VCM are intercha...
by antus
Tue May 28, 2024 2:15 pm
Forum: Engineering and Reverse Engineering
Topic: E38 Negative Response to read-write ECU
Replies: 9
Views: 252

Re: E38 non communicative ECU

I'm not an E38 guy so there might be context I am not aware of here, but in general the whole flash process is bi-directional. It'd be incredibly unlikely that you have a software only fault that allows the pcm to run, but it just cant transmit, yet it'll passively sit on the bus, have the same secu...
by antus
Tue May 21, 2024 1:25 pm
Forum: Off Topic
Topic: More ELM327 Fun (Read: Headaches)
Replies: 8
Views: 531

Re: More ELM327 Fun (Read: Headaches)

The fact it was a chip, not an interface was probably a mis-step for elm as well as botching their 1.0 security and getting cloned straight away. Being a chip only there is no such a thing as a standard elm interface. Manufacturers are free to put whatever analog electronics they want around the chi...
by antus
Mon May 20, 2024 12:15 pm
Forum: Members Rides
Topic: Tinkers Rides rb30 to delco
Replies: 100
Views: 65280

Re: Tinkers Rides rb30 to delco

I looked up the RB30 firing order - its 1-5-3-6-2-4 So I figured that if the first 3 are 1-5-3 then it was likely the it'd go with the same pattern of the next 3 cylinders, (which were on the opposite stroke (exhaust) when the first half of the engine was compression and firing), So 6-2-4. Then to v...
by antus
Sun May 19, 2024 5:10 pm
Forum: Off Topic
Topic: More ELM327 Fun (Read: Headaches)
Replies: 8
Views: 531

Re: More ELM327 Fun (Read: Headaches)

hard to say without all the information, but one thought is it could just be low quality electronics and the timing is out just enough that the PCM cant decode it, even though the nano might have slightly higher tolerances, and/or see a slightly different waveform on the bus where it is. Try swappin...
by antus
Tue May 14, 2024 5:33 pm
Forum: Off Topic
Topic: Trying to monitor the data bus with an ELM327
Replies: 25
Views: 1973

Re: Trying to monitor the data bus with an ELM327

ELM has closed down, as far as I know everything is either a clone or alternate implementation but it is possible you have genuine, even if unlikely. According to their site they did make a 2.0, 2.1, 2.2, 2.3 The problem is the cloners always try to copy the genuine and do not gracefully use differe...