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SAAB CDI CASSETTE INFO Schematic of the CDI Cassette on a SAAB 9-5 1998 http://www.vems.hu/files/saab%20cdi%20schematic.bmp 430=Engine Controle Module (Trionic 7) 229=System Relay Trionic does not have camshaft position sensor, it uses ion-sense in the CDI cassette to tell ECM which cylinder that is combusting. In CDI cassette there are two "DET" components which means detonation sensing, one for cylinder 1+2 and one for cylinder 3+4, the "K" means signal upon knock and the "C" means signal upon combustion. Upon start the ECM does not now which cylinder of number 1 and 4 that is in compression stroke and which that is in exhaust so ignition will happen on both, after that the ion-sense component of the CDI cassette will sense which cylinder that actualy did a combustion and voilá - we have sync... Will try to find a better pic in time. // Michael Pihlblad a.k.a. glidarn
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