DIY_EFI Digest Tuesday, February 22 2000 Volume 05 : Number 071 In this issue: dfi Re: Data I/O 29B device programmer for sale RE: ECU6 board RE: ecu7 Re: ECU6 board RE: DIY_EFI Digest V5 #70 RE: DIY_EFI Digest V5 #70 See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Mon, 21 Feb 2000 10:12:02 -0500 From: "DAVID THOMAS" Subject: dfi This is a multi-part message in MIME format. - ------=_NextPart_000_0037_01BF7C54.1904B820 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable - ------=_NextPart_000_0037_01BF7C54.1904B820 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

- ------=_NextPart_000_0037_01BF7C54.1904B820-- - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Mon, 21 Feb 2000 09:58:51 -0600 From: "Robert W. Hughes" Subject: Re: Data I/O 29B device programmer for sale > Carl Summers wrote: > > > > Hi Steve, > > Do you have the software for it??? > > -Carl Summers > > I should have clarified a little. This programmer dates to 1984 I > believe, well before there was software on PCs for programming devices. > It has a serial port, and there is a program called promlink on the > internet that will download to it from a PC, but that's it. It's set up Most of these old programmers will talk with a dumb-terminal emulator. Hyperterm is about useless and win3Terminal not much better but Procomm (old DOS app) works well with most of them. Most of will accept several data formats and have a built in help screen to give you a hint of the command structure. - -- Robert W. Hughes (Bob) BackYard Engineering 29:40.237N, 95:28.726W Houston, Texas rwhughe@xxx.net - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Mon, 21 Feb 2000 09:50:27 -0800 From: "Al Lipper" Subject: RE: ECU6 board This is a multi-part message in MIME format. - ------=_NextPart_000_0000_01BF7C51.14EC7820 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Daniel, To be honest, I'm struggling with electrical filtering theory myself, so perhaps someone else could answer thet. Al -----Original Message----- From: Daniel [mailto:duagu@xxx.com] Sent: Wednesday, February 16, 2000 8:27 PM To: Al Lipper Subject: Re: ECU6 board sorry to ask why but i am a bit slow on that, i know that the ignition coil would produces spikes in the electrical circuitry but i assumed that the filtering should be done before the supply goes into the ecu board. Daniel ----- Original Message ----- From: Al Lipper To: Daniel Sent: Thursday, February 17, 2000 1:46 AM Subject: RE: ECU6 board Try a 470uf electrolytic cap. between ign. coil positive and gnd. Al -----Original Message----- From: Daniel [mailto:duagu@xxx.com] Sent: Wednesday, February 16, 2000 5:42 PM To: Al Lipper Subject: Re: ECU6 board Hi Al, thanks for the advice, I think i will place a capacitor in parallel between the battery and the ecu board, probably use one of the spare capacitors i have lying around, maybe 10uF. Daniel ----- Original Message ----- From: Al Lipper To: Daniel ; EFI Sent: Wednesday, February 16, 2000 4:52 AM Subject: RE: ECU6 board Daniel, I work for California Polytechnic State University. Apart from that, our EFI company is Injection Logic (www.injectionlogic.com) and focuses on selling custom EFI system designs. ECU6 and ECU7 are the result of the research from the products we market. I believe that cooperation is the greatest way to increase knowledge and promote development, so I have chosen to share most of the data on the systems we design. The proprietary information generally has to do with systems designed for a specific application. Even so, I try my best to use what I've learned from that work to help people with questions. I'm very glad to hear of your progress with ECU6. One caution, unless your vehicle's electrical system is VERY noise-free, you will probably need some filtering on the power supply input, or it may spontaneously reset (or report incorrect RPM, or fire the injectors when it shouldn't). Good luck! Al P.S. Thanks for the update. - ------=_NextPart_000_0000_01BF7C51.14EC7820 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Daniel,

To be honest, I'm = struggling with=20 electrical filtering theory myself, so perhaps someone else could answer = thet.

&nbs= p; =20 Al

-----Original Message-----
From: Daniel=20 [mailto:duagu@xxx.com]
Sent: Wednesday, February 16, = 2000 8:27=20 PM
To: Al Lipper
Subject: Re: ECU6=20 board

sorry to ask why but i am a bit = slow on=20 that, i know that the ignition coil would produces spikes in the = electrical=20 circuitry but i assumed that the filtering should be done before = the=20 supply goes into the ecu board.

Daniel

----- Original Message -----

From:=20 Al = Lipper

To: Daniel

Sent: Thursday, February 17, = 2000 1:46=20 AM

Subject: RE: ECU6 board

Try a 470uf electrolytic cap. between = ign. coil=20 positive and gnd.

-----Original Message-----
From: Daniel []
Sen= t:=20 Wednesday, February 16, 2000 5:42 PM
To: Al=20 Lipper
Subject: Re: ECU6 board

Hi Al,

thanks for the advice, I think i = will place a=20 capacitor in parallel between the battery and the ecu board, = probably use=20 one of the spare capacitors i have lying around, maybe = 10uF.

Daniel

----- Original Message ----- =

From:=20 Al = Lipper=20

To: Daniel ; EFI

Sent: Wednesday, February = 16, 2000=20 4:52 AM

Subject: RE: ECU6 = board

Daniel,

I work for = California=20 Polytechnic State University. Apart from that, our EFI = company is=20 Injection Logic (www.injectionlogic.com) and=20 focuses on selling custom EFI system designs. ECU6 and = ECU7 are=20 the result of the research from the products we market. I = believe=20 that cooperation is the greatest way to increase knowledge and = promote=20 development, so I have chosen to share most of the data on the = systems=20 we design. The proprietary information generally has to do = with=20 systems designed for a specific application. Even so, I = try my=20 best to use what I've learned from that work to help people with = questions. I'm very glad to hear of your progress with = ECU6. =20 One caution, unless your vehicle's electrical system is VERY = noise-free,=20 you will probably need some filtering on the power supply input, = or it=20 may spontaneously reset (or report incorrect RPM, or fire the = injectors=20 when it shouldn't). Good luck!

&nbs= p; =20 Al

P.S. Thanks for the=20 = update.

- ------=_NextPart_000_0000_01BF7C51.14EC7820-- - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Mon, 21 Feb 2000 09:50:25 -0800 From: "Al Lipper" Subject: RE: ecu7 The format you should be able to read is the .PDF files. If you don't have a PDF viewer (adobe acrobat reader 4.x), get it from www.adobe.com. The other files are just for your convenience if you happen to have OrCAD. Otherwise don't worry about them. Since I have provided the files in several formats, there may be duplicates. The bottom line is that ECU7 has two double-sided boards and ECU6 has one double-sided board. Al > -----Original Message----- > From: WLundquist@xxx.com] > Sent: Sunday, February 20, 2000 4:16 PM > To: efi@xxx.org > Subject: ecu7 > > > Al, I am unable to open the other files in the pcb folder. I was > able to use > viewmate to print the gbr files. Could you send me the other > files in another > format or am i missing something in translation (eps, tif, gif or > would be > helpful). your read me file does not explain how to open the > other files. I > might have an alternative company to manufacture the pcbs, would you be > interested? Also, could you explain in more detail the pcb > prints, as some > look to be duplicated and one does not match. My plan is the efi > a big block > chevy with two maf sensors and possibly dual injectors, one set > for idle and > midrange and one set for top end. The idea is for drivability > while making > the most of the potential horsepower at the upper r's. A question > that has > lurked in the back of my mind is the potential for an ego in each > header pipe > to control fuel to each cylinder, since no two cylinders are > exactly alike, > too bad timing could not be done in the same method. Anyway, any > help would > greatly be appreciated. Thanks Wayne > - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Mon, 21 Feb 2000 13:53:17 -0500 From: "C. Brooks" Subject: Re: ECU6 board I would recommend placing your filter as close to the components that require the conditioned signal. The farther the filter is from the components that rely on it the more potential for noise there is in the line. Filter theory can get complex pretty rapidly. Most applications don't require more than 24 dB of attenuation by the filter and do not have phase noise or accuracy requirements so most of the complex stuff can be thrown out. One of the best works on filters (And op-amps) is "The Active Filter Cookbook" It will lead you through all the math and theory and have you building filters from a handful of components in less than an hour. I've used this book for designing signal conditioning "Boxes" for data acquisition stuff for a couple years and before that I made my own audio crossovers and walkman amplifiers with it :) You'll have more fun with that one book than a whole semester on filter theory Charles Brooks Mid-Atlantic Speed Shop http://www.massmotorsports.com - ----- Original Message ----- From: Al Lipper To: Daniel Sent: Monday, February 21, 2000 12:50 PM Subject: RE: ECU6 board > Daniel, > To be honest, I'm struggling with electrical filtering theory myself, so > perhaps someone else could answer thet. > > Al > -----Original Message----- > From: Daniel [mailto:duagu@xxx.com] > Sent: Wednesday, February 16, 2000 8:27 PM > To: Al Lipper > Subject: Re: ECU6 board > > > sorry to ask why but i am a bit slow on that, i know that the ignition > coil would produces spikes in the electrical circuitry but i assumed that > the filtering should be done before the supply goes into the ecu board. > Daniel > ----- Original Message ----- > From: Al Lipper > To: Daniel > Sent: Thursday, February 17, 2000 1:46 AM > Subject: RE: ECU6 board > > > Try a 470uf electrolytic cap. between ign. coil positive and gnd. > > Al > > -----Original Message----- > From: Daniel [mailto:duagu@xxx.com] > Sent: Wednesday, February 16, 2000 5:42 PM > To: Al Lipper > Subject: Re: ECU6 board > > > Hi Al, > thanks for the advice, I think i will place a capacitor in parallel > between the battery and the ecu board, probably use one of the spare > capacitors i have lying around, maybe 10uF. > Daniel > ----- Original Message ----- > From: Al Lipper > To: Daniel ; EFI > Sent: Wednesday, February 16, 2000 4:52 AM > Subject: RE: ECU6 board > > > Daniel, > I work for California Polytechnic State University. Apart from > that, our EFI company is Injection Logic (www.injectionlogic.com) and > focuses on selling custom EFI system designs. ECU6 and ECU7 are the result > of the research from the products we market. I believe that cooperation is > the greatest way to increase knowledge and promote development, so I have > chosen to share most of the data on the systems we design. The proprietary > information generally has to do with systems designed for a specific > application. Even so, I try my best to use what I've learned from that work > to help people with questions. I'm very glad to hear of your progress with > ECU6. One caution, unless your vehicle's electrical system is VERY > noise-free, you will probably need some filtering on the power supply input, > or it may spontaneously reset (or report incorrect RPM, or fire the > injectors when it shouldn't). Good luck! > > > Al > > P.S. Thanks for the update. > - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Mon, 21 Feb 2000 23:13:02 -0300 From: "Diego Martin Monteverde" Subject: RE: DIY_EFI Digest V5 #70 >Date: Mon, 21 Feb 2000 10:31:56 +1000 >From: Christian Hack >Subject: RE: Nissan ECM Was: Motec ??s > >> Date: Sat, 19 Feb 2000 14:17:57 -0500 >> From: "nacelp" >> Subject: Motec ??s >> >> >> Any one on the list cracked a Nissan ECM?. > And a ML 4.1 Motronic? - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Mon, 21 Feb 2000 23:11:35 -0300 From: "Diego Martin Monteverde" Subject: RE: DIY_EFI Digest V5 #70 For what you may need, take a look at www.motec.com.au I'm considering different brands right now, and this seems very serious to me. Martin >Date: Mon, 21 Feb 2000 10:31:56 +1000 >From: Christian Hack >Subject: RE: Nissan ECM Was: Motec ??s > >> Date: Sat, 19 Feb 2000 14:17:57 -0500 >> From: "nacelp" >> Subject: Motec ??s >> >> Any one here worked with a MOTEC?. >> >> A friend bought a ex-race car (Nissan 300 ZX) with a MOTEC, but didn't get >> any cables, software. > - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ End of DIY_EFI Digest V5 #71 **************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. A non-digest (direct mail) version of this list is also available; to subscribe to that instead, replace "diy_efi-digest" in the command above with "diy_efi".