nisscan.com

v1.05 ? I'm only up to nisprog_1_03 ( see the firt post , http://www.romraider.com/forum/viewtopic.php?f=7&t=10897 ), so I'm guessing you're using an old version based on *freediag 1.05*. The version numbers don't match, i.e. nisprog 1.03 is based on freediag 1.07. Yes, if the first ~260kB were ...

moldbruja wrote: > took 2 1/2 hours to dumb 260kb i hope ndsII has better dumb speed !! What version of nisprog were you using ? I get 100B/s speeds with the latest, so yes it's slow (90 minutes to dump my Sentra) but not that bad. In theory. Oh btw, I think your ROM should have 512kB total. But it ...

I thought all QR25DE's had 9.5 compression ratio ? Owner's manual says nothing, service manual says 9.5... The only other authoritative answer I can find is http://web.archive.org/web/20080206185352/http://nissannews.com/nissan/2004vehicles/sentraser/specs.shtml I looked around for some info about ...

Hi, here's a bit more info : 04 Sentra SE-R Spec-V M/T non-ABS QR25DE Canada Octane: Regular (lowest common north american octane, I always forget if it's 87 RON, PON, or (R+P)/2. Owner's manual recommends Premium (91) but says Regular 87 is ok. Intake valve advancer range : there's no way of ...

Boom ! 11ms/byte. Now we're cooking... it took ~90 minutes for a full dump. I still find that terribly long but it's better than 54 hours, and I think I've pretty much maxed out the capabilities of the 10.4kbps link with the service ID I found. Here's the complete dump. I'll start digging in the ...

I slightly increased the download speed, ~ 40 ms/byte now (~6h for the full 512kB). In theory I should be blazing at 10-15ms/byte but I'm getting huge delays somewhere, I need to investigate. In the meantime I dumped the first 4K. No tables in there, but there's some reset code that's very similar ...

Some success today : I dumped the 128 first bytes of my Sentra's ECU ! They're the same as the XTrail ROM (reset vector @ 0x000000) so I believe I'm getting valid data. But the process is slooooow.... it takes ~ 375ms per byte. It would take 54 hours to dump 512k !!! Let's just say I'll have to ...

Hi John, thanks for the info. When I posted that last message I had just discovered that the Nissan repro software sent SID 31 ( 31 01 01 00 00 06 ff ff ck1 ck2) to make the ECU verify it's checksum after reprogramming, sending the expected 16-bit checksum and waiting for a positive answer. I ...

Hi jaf, I've done a wee bit more work on your ROM (I'm telling you, this throttle hang is driving me nuts, even more so now that I think I have a thin chance of finding the problem in the ROM) I've actually just realised that the Nissan J2534 software uses by-the-book ISO14230, with short address ...

Haha... well I have to admit, to my shame, that I had miswired my OBD connector. I was using the L pin (15) instead of K (7)... In my (hopeless) defense, I made that adaptor a few years ago and never got around to testing it. Sorry for wasting everyone's time... I'm usually good at following my own ...