81280zx Posted January 22, 2007 Share Posted January 22, 2007 hey all i was wounderin on my 81 when i was working on the engine the o2 sensor wire touched the mani and the idle got real calm and smoth and then when it didnt touch it it ran rough. So i unpluged it to see what it does and it ran the same it only ran good if it touched the mani. so is this normal? Quote Link to comment Share on other sites More sharing options...
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