Slight stumble at idle (intermittent)
Perhaps someone can shed some light on this issue. If I come to a stop and let the truck idle for about 20-30 seconds the motor has a slight stumble and through the datalog I can see PCM demanding 1.000 lambda and all the sudden it drops to .83 lambda and the wideband also shows an extreme rich condition.
Perhaps it could be something to do with cat protection? I see an enable/disable under this folder, and I can select yes or no. Is yes enable and no disable?
Any ideas are good at this point. Thanks again.
Just to add, can someone also explain "Fuel Dynamics Compensation algorithms". I don't see any real tables, just enable/disable, but I'm assuming it can be a stomp fuel or something along those line? Thanks
