Olds71S Posted April 27, 2007 Share Posted April 27, 2007 Now that my fuse problem has been resolved (see '71 Cutlass fuse blowing), can someone tell me what this thing does, why I need it, and why is there a external resistor between the two connectors? I have attached a picture of it.Thanks in advance for any info. Link to comment Share on other sites More sharing options...
joe_padavano Posted April 27, 2007 Share Posted April 27, 2007 TCS is transmission controlled spark, an early emissions control device. The intent was to prevent vacuum advance in certain gears (hence the "transmission controlled") to reduce NOX emissions. The looping hose indicates that the unit is already bypassed, so disconnect the electrical connector and drive. Link to comment Share on other sites More sharing options...
Olds71S Posted May 10, 2007 Author Share Posted May 10, 2007 Thanks,I don't like emission control any way. Link to comment Share on other sites More sharing options...
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