Jersey Posted April 3, 2004 Share Posted April 3, 2004 For the life of me, i can't remember how the 82-83zxt EMC gets it's signal to know where TDC is? I don't think it's the CAS, like the newer 84 and up ECM's so, where then? Seems i'm a tooth off on the dizzy but i double checked it at TDC and it all lines up perfectly. I must be missing a signal on the wiring somewhere. Any help/suggestions is appreciated. Thanks. Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted April 4, 2004 Share Posted April 4, 2004 It doesn't need to know TDC. It just need to know when to fire the spark, so it doesn't matter which cylinder. It gets 6 positions from the wheel in the dizzy, so in effect it has 6 TDCs, one for each cylinder. Quote Link to comment Share on other sites More sharing options...
Jersey Posted April 4, 2004 Author Share Posted April 4, 2004 Got ya. Thanks Nathan. Couldn't remember! I found out i was one tooth off on the oil pump which caused my timing issue. Everything's good now 8) Thanks again. Quote Link to comment Share on other sites More sharing options...
yo2001 Posted April 4, 2004 Share Posted April 4, 2004 82-83 CAS sense TDC, that's the clicking you hear from CAS. Z31 sees TDC and TDB Quote Link to comment Share on other sites More sharing options...
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