Ford Explorer: EGR mod on a 4.0L

Good.... The EGR plays an important role in keeping our air cleaner and our
planet livable. With modern technology, there is nothing to be gained by
circumventing such an important piece of emissions equipment. If you can
feel any difference between having the system hooked up and disabled, you
would be much further ahead to repair the problem than putz around....... In
case you are wondering, the PCM is not only looking for a signal within a
particular range, it is also looking for changes in the signal so that it
can modualte the EGR position to achieve the desired flow.

In a properly functioning system, there will be no EGR flow at either idle
or WOT...


--
Jim Warman
net

"SkyOrDie" <net> wrote in message
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"Jim Warman" <net> wrote in message
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our 
In 

I don't have a problem. I'm interested in performance and driveability in
between idle and WOT. The mod has been documented for other engines, but I
can't find specifics for the 4.0 OHV. Injecting exhaust gases into the
incoming charge reduces power while it's reducing NOx emissions.

Your gas mileage will suffer if you perform this mod. But if you
must, this mod will only work if you change to aftermarket throttle
plate bearings and install new piston relief springs. She'd be
running purdy smooth then.

Tom


"SkyOrDie" <net> wrote in message news:<bjnn8p$96n$service.uci.edu>... 

Here-in lies the conundrum, if you are looking for more part throttle power,
it is simple to merely press harder on the pedal rather than defeat a
control device that will surely affect our grandchildren.

Now, I'm no environmental activist..... I will be the first one to tell you
that seeking zero emissions is an unattainable folly. At the same time, as
responsible adults, it behooves us to do our best to minimize the impact
that we have on our surroundings.

There are many subscribers to this NG that live in areas adverselty affected
by automobile and/or industrial emissions and they are, quite likely,
muttering under their collective breaths. That you understand the
ramifications of disabling the EGR system and are likely quite aware of the
effects of oxides of nitrogen in the atmosphere........


--
Jim Warman
net

"SkyOrDie" <net> wrote in message
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you 
around....... 
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it 
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