|
|
Post by webenergy on Oct 26, 2008 9:30:12 GMT -6
Where would I be able to get my PCM tuned? I'm in Canada. Is there a apecial machine (Genesis) that a garage needs with software and a manual, or do I got to the dealer for this?
|
|
Randy T.
Administrator 
☯ AURORA GXP ☯
Posts: 3,758
Staff Member
|
Post by Randy T. on Oct 26, 2008 9:47:29 GMT -6
I don't know about 2Gs, but on 96-99 Classics it is about impossible. ajxtcman is a person that has been working on them.
|
|
|
|
Post by Aurora40 on Oct 26, 2008 10:58:52 GMT -6
You'd probably need to get a job at GM in their Powertrain division. Seriously, no one has cracked the Siemens unit that seems to be unique to N* engines.
|
|
|
|
Post by Marc on Oct 27, 2008 13:42:27 GMT -6
Webenergy......there's a place in Canada, http://westers_garage.eidnet.org/index2.htm in Alberta that could do the tuning. And you could try going and asking some dealers. Some will do the tuning, some won't.
|
|
|
|
Post by diablo on Oct 27, 2008 13:54:19 GMT -6
what would you need to know? i'm assuming binary?
|
|
|
|
Post by webenergy on Oct 27, 2008 15:04:25 GMT -6
I did some research and here's what I found:
The dealer will only flash the PCM with whatever updates are available.
There is a performance shop here in town that said they can do it, but are checking with the machine's manufacturer to see what they need to flash an Aurora PCM. Apparently, the software was released for 01 and 02, bot not 03 yet.
If they can't flash the PCM, there definately is a performance chip available. The chip would have to be tuned. the chip is around $300.00
I'll update you guys when I have all the info.
|
|
|
|
Post by Aurora40 on Oct 27, 2008 15:34:56 GMT -6
Yes, the dealer has updates they can flash to it. There are some parameters they can change, like the mangasteer setting, etc. I do not believe they can do anything that would qualify as "tuning" in terms of modifying spark or fueling. Aurorabrain could probably give the best info as I'm sure he has access to a Tech II.
The Siemens PCM does not take a chip as far as I know, so I'm not sure what you are referring to? Does the 3.5L use a different PCM than the 4.0L? If you are lucky, maybe it uses something like the W-bodies?
|
|
|
|
Post by Marc on Oct 27, 2008 20:12:43 GMT -6
|
|
|
|
Post by diablo on Oct 28, 2008 8:34:10 GMT -6
Any dealer would do a pcm flash?
Are autobahn and non autobahn pcm's interchangeable?
The reason I ask, is that I want to get a test pcm...
|
|
|
|
Post by Superdemon on Oct 30, 2008 5:31:27 GMT -6
what would you need to know? i'm assuming binary? It isn't feasible for most people to even consider. Cars are pretty specialized systems and require special software to code for effectively. |
|
|
|
Post by diablo on Oct 30, 2008 9:53:19 GMT -6
It isn't feasible for most people to even consider. Cars are pretty specialized systems and require special software to code for effectively. In binary right? If I had the software, I could code, assuming I know binary...  |
|
|
|
Post by Aurora40 on Oct 30, 2008 13:46:54 GMT -6
There's nothing to "know" about binary. 1 or 0, that's it. What the code represents to the architecture it runs on would take some serious doing to figure out. Possibly Siemens has some tech docs that might get you started, but maybe not.
|
|
|
|
Post by lanceslambos on Oct 30, 2008 14:10:39 GMT -6
no reason to blow $300.00 on a performance chip. aurorabrain told me i could unplug the map sensor and it will drive to its fullest potential ie: fuel trims, ignition timing, air induction. so far just kicking around town today buying blue lights i noticed it shifts firmer. from the research i have done on the chips, its nothing more than a fancy looking resistor which come in different temp readings. ie: 4.7 ohm resistor tells the ecm/pcm that its 57 degrees outside. you can go as far as a 100,700 ohm resistor which is 40 below 0. thats as cold as the computer can adjust for. i got that info from a repair manual. anyway you just unplug the IAT sensor and hook up the resistor into the IAT sensor plug.
|
|
|
|
Post by latenight72 on Oct 30, 2008 14:25:13 GMT -6
Your best bet, honestly. Is piggybacking a standalone ECU.
|
|
|
|
Post by diablo on Oct 30, 2008 15:52:44 GMT -6
I keep in touch with the people that reprogrammed the PCMs for the grand prixs... they were able to make adjustments to fuel trim and shiftpoints.
|
|
|
|
Post by diablo on Oct 30, 2008 15:58:53 GMT -6
i figure it can't hurt to check into it...
|
|
|
|
Post by webenergy on Oct 30, 2008 17:05:01 GMT -6
no reason to blow $300.00 on a performance chip. aurorabrain told me i could unplug the map sensor and it will drive to its fullest potential ie: fuel trims, ignition timing, air induction. so far just kicking around town today buying blue lights i noticed it shifts firmer. from the research i have done on the chips, its nothing more than a fancy looking resistor which come in different temp readings. ie: 4.7 ohm resistor tells the ecm/pcm that its 57 degrees outside. you can go as far as a 100,700 ohm resistor which is 40 below 0. thats as cold as the computer can adjust for. i got that info from a repair manual. anyway you just unplug the IAT sensor and hook up the resistor into the IAT sensor plug. Is it the same thing for the 2nd gen? If so, where is the map sensor? Inside the PCM? |
|
|
|
Post by Marc on Oct 30, 2008 18:33:12 GMT -6
On the 3.5, the MAP sensor is on top of the intake manifold, right above where the air duct connects to the manifold. To get to it, just take off the fuel injection sight shield.
|
|
|
|
Post by diablo on Oct 31, 2008 8:23:36 GMT -6
The brain also wrote;
|
|
|
|
Post by aurorabrain on Oct 31, 2008 8:42:40 GMT -6
Note that if your car isn't in tip-top shape it may run rough, idle high, and/or not run better. This is only for 96+ Auroras as the 95's rely on the MAP vs TPS+IAT to calculate speed density air flow for throttle+fueling. 95's don't run well with the MAP unplugged.
|
|
|
|
Post by aurorabrain on Oct 31, 2008 8:47:31 GMT -6
Any dealer would do a pcm flash? Are autobahn and non autobahn pcm's interchangeable? The reason I ask, is that I want to get a test pcm... The dealer will update the PCM with latest software ONLY. Autobahn is just programming, but getting a dealer to change a PCM programming would be very difficult unless you knew someone there. I am willing to do this to a PCM but you would have to PM me and we can discuss it. |
|
|
|
Post by diablo on Oct 31, 2008 9:13:28 GMT -6
PMed!
|
|
|
|
Post by aurorabrain on Oct 31, 2008 10:11:48 GMT -6
I had this idea a while back to try a Seville STS EPROM in a 95 for the 6500rpm shifts and the 150mph speed limiter. The PCM pinouts are identical and as you know they use the same PCM, so why doesn't it work? Well i dunno, and haven't found anyone that does yet.
When installed you start in 2nd gear, and the ECT gauge doesn't work. You get 6500rpm shifts but only on the 2-3 and 3-4. I haven't tested the speed limiter.
|
|
|
|
Post by 95oldsaurora on Oct 31, 2008 20:09:12 GMT -6
thats wierd why wouldnt you start in first gr?
|
|
|
|
Post by webenergy on Nov 5, 2008 7:52:33 GMT -6
Note that if your car isn't in tip-top shape it may run rough, idle high, and/or not run better. This is only for 96+ Auroras as the 95's rely on the MAP vs TPS+IAT to calculate speed density air flow for throttle+fueling. 95's don't run well with the MAP unplugged. What about the 2nd gen auroras? Is it the same thing for those? From what i'm reading, it isn't a good idea to unplug the map. |
|
|
|
Post by diablo on Nov 14, 2008 15:02:40 GMT -6
anyone remove the MAF screen?
|
|
|
|
Post by Deleted on Nov 14, 2008 18:06:36 GMT -6
I havent done that but I wouldnt either, it seems thats there just in case anything large gets through a hole in the line, and I doubt it woulc cause too much of a performance increase. I tihnk it might make your SES light flash too.
|
|
|
|
Post by diablo on Nov 17, 2008 12:37:22 GMT -6
it seems that it's there to somewhat straighten the air flow and reduce turbulence and keep things out. But, if your filter is on point i wouldn't really see an issue with it gone. Also, it isn't wired to anything so you wouldn't get a light.
|
|
|
|
Post by bravehart on Jan 3, 2009 14:09:06 GMT -6
i didnt do a search but i was wondering have you guys approched hp tuners about software for our cars
|
|
|
|
Post by ajxtcman on Jan 4, 2009 21:31:19 GMT -6
This is from a Shelby PCM Northstar customer
I had some software issues and couldn't tune his on the spot. I left him with a Manual Trans Fiero Tune that was setup for N/A. I have a new Boost tune all finished up for him and it will be mailed out soon.
Wester's and TunerCat are the only two that offer any support.
Oh wait I can do it also.
|
|
