DIY_EFI Digest Tuesday, 17 November 1998 Volume 03 : Number 551 In this issue: Re: [Re: 7730 to 7749] Re: [Re: 7730 to 7749] Re: CA18DET Info 808 idea See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- From: tedscj@xxx.net Date: 17 Nov 98 01:13:49 EST Subject: Re: [Re: 7730 to 7749] diy_efi-owner@xxx.edu wrote: > > -----Original Message----- > From: tedscj@xxx.net> > To: diy_efi@xxx.edu > Date: Monday, November 16, 1998 7:14 PM > Subject: 7730 to 7749 > > > For openers is you application MAF, or MAP?. MAP > If MAF then > I don't know if the 749 would support it. I had tried using a 808 > cal inna 730 but turned out it wouldn't run unless loaded 2x into > the memcal. Are you wanting to run the 730 cal in the 749?. Yes a 6cyl,MAP 730 Memcal in a 749 (just for now to get the car up and running) > Are you going to use the 749 initially with a 2 bar MAP?. No, not with the 730 memcal. > Rather than jumping to the 749, I'd say get a diacom, or some > such tool where you can record all you injector pulse widths, > and do that first. Maybe buy, and wire in a 2 bar MAP, and > record it's readings to whatever your running now. Once you > get a really complete fuel/spark table then get a 749 promgrammer > and the misc stuff to do proms, and figure out a 749 prom for > what you have already. > Even things like type of VSS need considered > Cheers > Bruce The 730 ECM in my car died, so I'm going to have to buy a new ECM either way, so I was hoping the 730 Memcal that I have would work in the 749. I would just be replacing my 730 with a 749. Everything else, Memcal, sensors, harness, etc. would be the same. The reason I thought this might be possible is that according to some posts in the archives, the 749 and 730 are IDENTICAL except for an extra mosfet driver in the 749. Also someone said they got a Promgrammer bin to work in their 730 (I don't know the application) by loading it above ffff. Except from what I can tell (I don't know much about programming) the bins don't even go that high. So I don't understand that one. Long term, I'd like to get the 749 working with the 730 code (for the DIS) and 749 data (from the Promgrammer), and a 2MAP sensor of course! (for turbocharging purposes!) But I guess for now, I'll just break down and buy another replacement 730. thanks, Ted ____________________________________________________________________ Get free e-mail and a permanent address at http://www.netaddress.com/?N=1 ------------------------------ From: "Bruce Plecan" Date: Tue, 17 Nov 1998 02:36:46 -0500 Subject: Re: [Re: 7730 to 7749] - -----Original Message----- From: tedscj@xxx.net> To: diy_efi@xxx.edu> Date: Tuesday, November 17, 1998 1:42 AM Subject: Re: [Re: 7730 to 7749] If you want to use the 730 memcal in a 749, after comparing pinouts that might work, but there can be conflicts. The 1227749 has used both 128+256K proms, but will your 730 memcal work, no guarantees. GM, does reserve the right to vary things, so at one time things might look one way, but when you buy a remanufactured ecm it may vary. It by the same token might plug right in, just be open to things varing from printed matter. >Yes a 6cyl,MAP 730 Memcal in a 749 (just for now to get the car up >and running) >The 730 ECM in my car died, so I'm going to have to buy a new >ECM either way, so I was hoping the 730 Memcal that I have would >work in the 749. I would just be replacing my 730 with a 749. >Everything else, Memcal, sensors, harness, etc. would be the >same. >The reason I thought this might be possible is that according to >some posts in the archives, the 749 and 730 are IDENTICAL >except for an extra mosfet driver in the 749. Also someone said >they got a Promgrammer bin to work in their 730 (I don't know the application) by loading it above ffff. Except from what I can >tell (I don't know much about programming) the bins don't even go >that high. So I don't understand that one. They can go that high and higher > >Long term, I'd like to get the 749 working with the 730 code (for the >DIS) and 749 data (from the Promgrammer), and a 2MAP sensor >of course! (for turbocharging purposes!). Promgrammer works with/on a certain program, with a certain set of switches, options, and tables (for the 749). You can't readily mix your existing 730 program with that. There probably is an option on the 749 for inverting the Distributor pulse for DIS, but you'd have to find that. Bruce > >But I guess for now, I'll just break down and buy another replacement 730. > >thanks, >Ted > ------------------------------ From: "Geoff & Sue Richards" Date: Sat, 14 Nov 1998 00:08:45 +1100 Subject: Re: CA18DET Info 808 idea >> >>well no nissan didnt use a 808 but I can give you a file that is a good >>thing for one ....but!......the delco dont like the cam/crank signal >>from the nissan.......but if you can overcome this problem then we can >>get things up and running without a problem... :) > >On some of the DIS to Dissy stuff they invert the signal so the timing >is wayyyy off, I'll bet that's it. >Bruce >> Hey Bruce if ya got time or the notion could ya explain this please Thanks Geoff >> > > ------------------------------ End of DIY_EFI Digest V3 #551 ***************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. 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