Cadillac Jim Posted October 6, 2018 Report Share Posted October 6, 2018 2 hours ago, Northstar said: Nice upgrade! Note that I haven't had that car for over five years now. I've put the manuals away, but will get them if needed here. I have GM shop manuals for 2002-2012 model years on DVD, so if you decide to look at a 4T80E from the 2004 model year or later to get the electronically controlled converter clutch, I'll be able to look at the connectors to get a good idea whether it is compatible with the stock 1996 PCM, see if the PCM does anything when the P0730 is set. I see from my summaries that it is a type C, which means that it turns on the MIL. If you do change the final drive ratio, you will want to store it in the PCM with a Tech II to get the speedometer calibration right, and that should turn off the P0730. I don't know if there is another number in the PCM that you can change when the tire rolling diameter changes, but I would expect that there is. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 16, 2018 Report Share Posted October 16, 2018 On 10/3/2018 at 1:48 AM, Northstar said: I remember Scotty AKA Body By Fisher I still have my 1996 STS and it still needs a freshly studded Norsthar block using the kit from NP. Basically I'm going to re-power her along with the 50hp Stage 3 tune from NP and a tire burning shift kit for the 4T80E when it hits 2nd gear. I will then try to get above 155mph since my speed limiter will be removed out in the desert. (new set of Z rated tires installed first) Does this sound like a good plan? Do you have better advice for me? How are you doing. I am very curious the results of your tune. Keep us in the loop Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Northstar Posted October 22, 2018 Author Report Share Posted October 22, 2018 Doing good thanks! Will document everything I do and report back. Take care! Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 22, 2018 Report Share Posted October 22, 2018 7 hours ago, Northstar said: thanks! Will document everything I do and report back. Take care! Where did you find a shift kit for the 4T80E? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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