SD or Alpha-N What do I have??!? - Tuning Forum

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SD or Alpha-N What do I have??!?
Saturday, July 12, 2008 10:47 PM
I've been bouncing around the idea of getting the GM S/C kit for my 97 sunfire. I know there are two different ECM's that came in the 97 cars... Is there any EASY way for me to find out if I have a SD ECM?

Its a 97 (duh) 2.4L 5 speed car. Also, I have seen many people talking about "faking" a tune since the 97 ECM doesn't read boost. What component changes would I have to make to get the s/c running in my 97 if I DO have a SD ECM?


1994 Ford Mustang Cobra

1997 Sunfire GT

Re: SD or Alpha-N What do I have??!?
Sunday, July 13, 2008 7:25 AM
Without seeing your file from your ECU we can not tell you if you have a SD ECU or not, but my guess is you do not.



FU Tuning



Re: SD or Alpha-N What do I have??!?
Monday, July 14, 2008 12:39 PM
Speed density = Map vs RPM.... Alpha N = TPS vs RPM...

Only way to see is to scan it and read the file with HPT. I can do that for you if you wanna drive up here again



Re: SD or Alpha-N What do I have??!?
Tuesday, July 15, 2008 4:18 PM
If you are getting the supercharger kit, you can have the dealer do the charger flash, which is speed density.





Re: SD or Alpha-N What do I have??!?
Wednesday, July 16, 2008 7:49 AM
John Benham wrote:If you are getting the supercharger kit, you can have the dealer do the charger flash, which is speed density.


I could be wrong but I thought the dealership was unable to put the supercharger reflash on pre 2000 jbodys



FORGET GIRLS GONE WILD WE HAVE GOVERNMENT SPENDING GONE WILD!

Re: SD or Alpha-N What do I have??!?
Wednesday, July 16, 2008 9:20 AM
Pretty sure the reflash is 2000 plus only like Wade said



Re: SD or Alpha-N What do I have??!?
Thursday, July 17, 2008 6:46 AM
Wade Jarvis wrote:
John Benham wrote:If you are getting the supercharger kit, you can have the dealer do the charger flash, which is speed density.


I could be wrong but I thought the dealership was unable to put the supercharger reflash on pre 2000 jbodys


That's correct. 2000+ only





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Re: SD or Alpha-N What do I have??!?
Thursday, July 17, 2008 4:34 PM
For me:



As far as I know, no one ever decoded a vin break for the SD/Alpha N.....or any physical differences in the computer....





Re: SD or Alpha-N What do I have??!?
Friday, July 18, 2008 6:17 PM
Jazer {AzulKav} Turbo Chica wrote:Speed density = Map vs RPM.... Alpha N = TPS vs RPM...

Only way to see is to scan it and read the file with HPT. I can do that for you if you wanna drive up here again


Jess, I'd love to. That was actually why i IM'ed you the other day, but I couldn't get in touch with ya.


1994 Ford Mustang Cobra

1997 Sunfire GT
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