e/H.E.I.

Information
has gloss	eng: High energy ignition, also known as H.E.I, is an electronic ignition system introduced by General Motors in 1971 and used through the mid 1980s. It is characterised by the incorporation of the ignition coil into the distributor cap, eliminating the need for a coil wire and adjusting them. The coil is mounted on top of the distributor. The system was optional on GM cars from 1971 through 1974 and standard from 1975 onward. The system consists of a control module and a magnetic pickup mounted in the distributor. The control module basically performs the same function as the breaker points in a points & condenser system. There are three basic types of HEI control modules, the four pin, five pin, and seven pin modules. The four pin module was used on conventional carbureted engines and uses conventional mechanical timing controls (vacuum and centrifugal advance mechanisms).
lexicalization	eng: H E I
lexicalization	eng: H. E. I.
lexicalization	eng: H.E.I.
instance of	c/Ignition systems