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Old 08-22-2010, 04:33 PM
StarquestRescue StarquestRescue is offline
Join Date: Apr 2010
Location: PA
Posts: 25
Default Afr drop for no apparent reason?

Car is a Conquest with 850/1400 injectors and base maft. Timing is distributor controlled. It does have a knock sensor that can pull 7 degrees.
I keep running into a afr drop for no apparent reason. Seems to happen around 1350-1400 hz but if anything the duty cycle shows a small dip at the same time. I did notice duty cycle is about 80-82 % when it happens. Rpm can vary. Any input on why it is happening and how to tune it out?

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