Ruiz Racing Posted March 10, 2011 Share Posted March 10, 2011 I have a 1981 turbo. It runs better without the oxygen sensor plugged it. If I plug it in it runs super rich. Quote Link to comment Share on other sites More sharing options...
kiwi303 Posted March 10, 2011 Share Posted March 10, 2011 Obvious test, swap a known good sensor from another car and clear the computer, see if it clears up, if yes, get a new O2 sensor. Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted March 14, 2011 Share Posted March 14, 2011 Check the TPS and CHTS as well. You can check an O2 sensor with a multimeter. On idle once warmed up, it should swing between >.5v and <.5v Quote Link to comment Share on other sites More sharing options...
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