preston7 Posted June 17, 2011 Share Posted June 17, 2011 I have bought a decat (1st cat) for a NA. On the bottom of my first cat their is a sensor but the decat dosn't have a fitting for this. Whats the sensor for and do I need it? Link to comment Share on other sites More sharing options...
Nic Posted June 17, 2011 Share Posted June 17, 2011 It's a temperature sensor for the catalytic convertor, it activates the cat overheat warning light on the dash. It has no effect on performance, best thing to do it just cable tie the sensor out of the way underneath. Link to comment Share on other sites More sharing options...
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