DIY_EFI Digest Friday, July 9 1999 Volume 04 : Number 404 In this issue: Re: 1226870 ecm questions C.E. as shift light See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Thu, 08 Jul 1999 16:52:41 -0800 From: Ludis Langens Subject: Re: 1226870 ecm questions Mike wrote: > I am trying to link my laptop to the ecm datastream. I have learned that it > is 160bps and that a 10k resistor between the A and B terminals will put the > ecm into diagnostics mode. Check the archives. Your question is a Frequently Asked Question. > 1. What are the communications parameters, i.e. data bits, stop bits, parity, > etc. > > 3. 160 bps is not a com port option on the menu. Can I just type it in and it > work? Variable pulse width / duty cycle bit encoding, one start bit (sort of), 8 data bits, no stop bits, no parity. Your serial port is not capable of these settings. If you look through the archives, I suggested a method that might allow your standard serial port UART to receive ALDL data. It involves setting the data rate to something in the 2000 baud to 3000 baud range. You will receive one _byte_ for each ALDL _bit_. You then get to extract the data stream from these bytes via software. > If anyone can answer the following questions, I would greatly appreciate it: Check this out: http://www.isthq.com/~dan/aldl.htm - -- Ludis Langens ludis (at) cruzers (dot) com Mac, Fiero, & engine controller goodies: http://www.cruzers.com/~ludis/ ------------------------------ Date: Thu, 8 Jul 1999 17:16:09 -0700 From: "Stegbauer, Michael" Subject: C.E. as shift light Sorry for the late entry into this thread... There is a company called Technomotive that reprograms Diamond Star ECUs. One of the functions is using the C.E. as a shift light. They can also use the relatively useless stock boost guage to display O2 voltage, Injector Duty Cycle, Advance, etc. Stage 3 includes a stutter box for launching. Not much use if you don't own a Talon, Eclipse of Laser, but it still may hold some interest for y'all: http://www.tmo.com Cheers, Mike ------------------------------ End of DIY_EFI Digest V4 #404 ***************************** 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".