DIY_EFI Digest Friday, September 10 1999 Volume 04 : Number 516 In this issue: toyota, GM ecu, waste spark, Kalmaker O2 Sensor Motec? Re: cruise control servo - fly by wire See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Fri, 10 Sep 1999 09:02:13 +1200 From: Roy Baker Subject: toyota, GM ecu, waste spark, Kalmaker Hi guys I have a project that I need some help on. I have a Toyota 3SGE motor (4 cyl) in my club man 7 I am building. I have Kalmaker software from Australia and a 16183082 ECU (it says 808 on the case but it has the high speed chip). The car has separate throttle bodies one per cylinder. (made in USA) I need to interface the Toyota Distributor with the ECU or perhaps fit a waste spark system. The Toyota dis uses 24 tooth crank angle sensor, 2 TDC sensors (reluctor type) 1) I have built a hall effect sensor to fit to the front pulley of the engine with two sensors for a waste spark system. What I need now is a circuit to take these pulse and give them to the GM ECU and gate the return EST to fire the correct coil. Of all the GM ignition modules produced is there a version for a 4 cyl waste spark system that fits between the 4 wire of the GM ECU and hall effect sensors? 2) I could grind the lobes from the crank sensor and produce 4 pulse as per standard arrangement and use the 2 TDC markers to gate a 4 coil set up. Are there any web sites that can give me a few clues as to the types of circuits for the above two methods. My programming skills are very limited so I dismissed this approach once I found my STAMP was to slow to count the 24 pulses per rev when the dis was rotated by my electric drill at 2500 rpm! Any advice or help would be gratefully receive. This is my first posting sorry for the length. ------------------------------ Date: Fri, 10 Sep 1999 09:03:14 +1200 From: Roy Baker Subject: O2 Sensor Does any one know how far from the exhaust valve the O2 Sensor can be placed. Due to restrictions I can place it : 1) About 1 pipe meter length from the motor (exhaust valve), 2) About 1.8 meters from the exhaust valve and after the muffler. This will however be within 200 mm of the open end of the exhaust pipe. Perhaps some power boat people or Hot Rod fans have tried different location? The Exhaust pipe is on the outside of the car and the reasons are aesthetics. ------------------------------ Date: Thu, 9 Sep 1999 17:42:53 -0700 From: "Lowell Foo" Subject: Motec? Anyone running a Motec box, drop me an email at lowell@xxx.com My car is a Talon with an M48 pro, wideband, adv tuning and logging, IEX and v5.11 software. ------------------------------ Date: Fri, 10 Sep 1999 01:09:43 -0400 From: Chris Conlon Subject: Re: cruise control servo - fly by wire >Date: Tue, 7 Sep 1999 18:57:52 -0400 >From: "Clare Snyder" > >I would think the electric cruise units might stand a chance - the vacuum, >definitely NOT. Ok, I'll bite. Electric cruise control units? Is there an aftermarket (or cheap OE unit) I can get? The stock cruise control on the car is the vaccum type, so if I'm not gonna use that, the alternative has to be affordable (under $300 or so for the servo part). I had some ideas about rigging up 4-6 different solenoid valves, each with a different size restrictor, to be able to open and close a vaccum type unit at different speeds. It seems like a lot of work, though, and even so not likely to give good results. Thanks to everyone for all the help. I'm checking with one of my model airplane friends to see if they have any usable servo stuff. Chris C. ------------------------------ End of DIY_EFI Digest V4 #516 ***************************** 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".