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Originally Posted by myanoch
Checked duty cycle on injection found it to be rich
Addjusted duty cycle at tower 3/8 turn lean to help condition
Car runs great....???
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If the duty cycle wanders around a little at idle or "hunts" up & down once your O2 sensor is warmed up, it's working. No need to change & no improvement expected from a change. Take a break, have a beer instead.