I just went out and checked mine with a Genisys scan tool. It was pretty much the same thing. I would suspect that this might have something to do with pcm trying to keep the catalytic converter "lit off" I used the grafting feature on both O2 and ignition advance. Although they were not exactly the same, I could see a pattern to them both. I would call it normal...

 

I really appreciate all the replies. I still wonder about it being normal or just a common problem that no one really notices until it surfaces as something else. I checked a 1999 Durango at work today and the timing at idle only fluctuated between 6 and 10 degrees. Sorry for dragging this up again butI haven't been on here for a day or two.

 

you know... after reading this thread again, I recalled that the base timing is not adjustable and the timing will fluctuate at idle. my suggestion now would be to find another ram or magnum equiped truck/van/suv and see what theirs reads... I bet it's the same.

 

I checked a 1999 Durango and it fluctuated between 6 and 10 degrees which is quite a bit less than mine. As soon as can find a truck exactly like mine to check I will. Thanks again.

 

shouldnt matter... same motor, similar software controlling it.

check your distributor for play, could be abnormally wearing out.

 

That might bea dicey proposition to another Ram owner, "Hey can I stick this probe in your truck?"

 

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I think if your gentle when you ask - it might be all right. But you might have to buy a dinner and flowers to go with it. Anyway - it's interesting to hear you say that about the distributor. That actually makes sense to me. I could see that causing this. Have you ever personally heard of that happening ?

 

in the interests of correct spelling : I meant "ifyou'regentle".

 

i'd let you check mine if you were closer to see if it was normal..but i have mine with a hypertech, so it may be different...i'm not sure