Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site clyde.UUCP
Path: utzoo!watmath!clyde!gjw
From: gjw@clyde.UUCP (Gregory J. Wroclawski)
Newsgroups: net.auto
Subject: Re: Distributor-less Ignition
Message-ID: <699@clyde.UUCP>
Date: Fri, 4-Jan-85 16:31:07 EST
Article-I.D.: clyde.699
Posted: Fri Jan  4 16:31:07 1985
Date-Received: Sat, 5-Jan-85 02:08:13 EST
Organization: AT&T Bell Laboratories Whippany NJ
Lines: 9

The 3.8 liter V-6 engine with port type electronic fuel injection which
is available on some new buicks in 1985 has a distributor-less ignition.
The electronic ignition control module which electronically advances
ignition timing determines which of the three coils to fire depending 
on signals from crankshaft position sensors on the crankshaft pulley.
Each coil fires into a dead cylinder(between intake and exhaust strokes)
and a live cylinder(near the top of the compression stroke). This is
a trick the Japanese have been using on their 4 clylinder motorcycles for
years.