AFC = lean at idle?

Wingman21

Member
Hey guys,

Since Im not getting too many responses in an old post I figured I could start a new one. I installed my AFC last weekend and when I started my car, I was running lean at idle. Im only using a narrowband for my A/F, but it still shows a lean condition (red all the time). When I by-pass the unit (stock setup), everything comes back to normal and the light is moving back and forth between lean and rich.

I did also test it with another AFC unit from my friend and it was working well, so it cannot be a leak or a connection.

The number behind my unit is PSC-020E. Dont know what the extra "E" means, but I remember seeing some setting in the map to be changed, like the "over pressure setting" that would affect idle condition.

Anybody else had the same problem than me, i.e. lean idle, and fixed it ?

Thanks
 

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