Re: Rough Idle?

From: GS- (GSWillhite@ualr.edu)
Date: Thu Jan 13 2000 - 17:27:25 EST


Thanks, mine is not pinging and I've done most of that
long ago. I've been on the mopar chat site and it seems theres
alot of ram owners that are complaining. Thought I'd pick your
mind on this. Thanks

GS -

Dave Scelfo wrote:
>
> >Dave can we get your opinion on the MAJOR cause of pinging on
> >the 5.2L and 5.9L Magnum engines? CC to hot for emissions sake?
> >
> >Thanks
> >
> >GS -
> >
>
> Hmm. My 5.9 doesnt ping. I've only been a Mopar guy for about 3 months so
> these engines are kinda new to me. A hot CC will cause pinging but wont
> necessarily reduce emissions. If you're CC is hot because of a lean
> condition, NOx will be up, but you're CO/HC will be down. I could see Mopar
> leaning them out slightly in order to get some better gas milage and keep
> NOx down but your sacrificing some power. If you could set adjust your AF a
> little richer, it might help or alleviate the problem, with a little gain in
> performance, loss of fuel economy.
>
> I'd suggest a 180 stat, maybe even a 160 if you can get away with it.
> Its worth the few bucks, much better than the extra 20 cents a gallon eh?
> Let me know how it works out.
>
> --
> Dave
>
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