PCMTec Development Blog

[Tazzi]

Shell be right.. bit of glue.. wont even noctice

[VX L67 Getrag]

Yeah the case I took off didn't look as bad as that, but it straightened out ok & can go back on with whatever the proper silicone glue they use is & wouldn't notice considering it's the down side when in car! So long as elements are sealed out!

[MeZmeriZe]

In case anyone was wondering this is how you remove the case on your PCM. FYI it is not going back on once you take it off lol. Bent the fuck out of it with a screwdriver. I think if you used a heat gun you could possibly melt the high temp glue off and remove it with a knife without damaging it if you were so inclined.

heh.. you have more patience than I do.. I used a small angle grinder. wasn't expecting it to ever go back on.

[MeZmeriZe]

Back on the subject of vin changing, I found a BA that had no VIN today & everything was communicating happily supposedly but it had fan running constantly so I thought I'd better cross all bases & tried applying the VIN to ecm & had the checksum error E1639 for VID.

So I spent way TOO long trying to correct the sum myself with advice from rolls all to no avail, so I knew HPT 2.24 could write VIN but it said the OS was incompatible with VIN so the file I wrote to controller with incorrect checksum with rolls's tool when I read it back with HPT 2.24 it asked to correct it(warning it may not be correct) so I said yes & BINGO it had the right checksum & wrote that back & all was good in the world! But HPT 2.25 onwards didn't pick up there was a checksum error with that block!

Interesting.. when I got my BA I had the impression that it had previously had a lot of work done which had been undone before sale.. (mostly) The fact that the Turbo was a Turbotech job with a oversized wastegate was one give away but there were many more. (I've actually wondered if my engine has stronger rods and hardened valve springs as it revs high with a fair bit of boost with no noticable valve bounce.

Anyway, the reason I mention that is because when I started messing with the tune we discovered that the VID block was corrupt or blanked. no listing for VIN, or any of the other details like diff ratio, tyre size etc etc.. and the first tune we put on went into limp home mode as there wasn't any entry that specified where the speed was to be picked up from.. (ie ABS/traction control etc) so it had to be changed manually.

Later on after I did my manual conversion I used BE to edit all the parameters in my VID block to match the car as it is now. So my original Auto BA PCM got a manual bin dumped onto it and then the VIN and all settings were matched to the car again.)

I am about to do a binary diff between the dump off my PCM and the converted PHF file.. I may not be able to see what is different, but I can see how much is different, which is something.... I have a suspicion that the checksum values were not updated as I get an error code about it every time I clear codes.

[80gus]

In case anyone was wondering this is how you remove the case on your PCM. FYI it is not going back on once you take it off lol. Bent the fuck out of it with a screwdriver. I think if you used a heat gun you could possibly melt the high temp glue off and remove it with a knife without damaging it if you were so inclined.

that ecu looks familiar!!
Heres a 2 plug i open some time ago, i used a angle grinder tho, board construction looks the similar just missing some components

[80gus]

Rolls what ASU number BF ecu is it that's holding the FG file for ya? i've tried all the ecus i have on hand yet to get one to hold.

[rolls]

I'll have a look later. Probably more a factor of what file you are putting into it rather than what the donor is.

[rolls]

Well it took me a while but I customised the devexpress GridControl to accept dynamic colour formatter that colours all cells. Bit of dicking around but I have a really nice view and viewmodel now that is built into a user control.

Should be full steam ahead now. Spun my wheels on this WPF stuff for a few weeks but I'm finally getting a grasp on all these new things.

Here is my test application that uses the new control with a docking manager etc

[galapogos01]

Looking amazing mate, I'm impressed with the quick progress.

[luke111]

I want to do some editing & tuning of my BA ecu.
I have had a quick look with hex editor and found the tables. Looks like from F0000 onwards theres a few.
I've got VCM suite as a cross reference so I can look at what is what.
Im wondering if anyone has an address list for any table locations?

I want to edit :
50054 - Map per Airmass (OPEN) table. (this looks like the main Speed denisty table if I am correct)
50183 - Border line Knock (they say its ok to set all values to 50 and then just use MBT to tune ignition)
32265 - MBT spark (main igntion tables)
40100 - shift speed vs tps (economy) these values are driveshaft speed.

I am going to make a quick basic set of definitions and use romraider while I wait patiently for the new editing program.

I took my XH to the drags last wednesday night. My best run was 15.33 @92.5mph.
There's plenty of room for improvement. I need to lean it out a bit and change the shift points. It kept shifting gears too early in D.