njss396 <njss@aol.com> wrote in news:1184679609.299228.127250
@i38g2000prf.googlegroups.com:

>
> My 1988 Legend with 190,000 miles and automatic transmission has been
> running rough.
>
> I've replaced the spark plugs, plug wires and PCV valve. I've run Fuel
> System Cleaner and changed the oil with Mobil 1.
>
> It starts, cruises and turns off fine.
>
> Yesterday, I drove from Central NJ to Northern Virginia covering 200
> miles in three hours (66 miles per hour) and I averaged 25.03 miles
> per gallon.
>
> But around town, it seems to buck like crazy especially at around
> 1,700 RPM and 42 MPH under light accelleration.
>
> Sometimes it idles fine, other times it idles rough.
>
>
> Sincerest thanks in advance
>
>


Check the EGR valve. It may be stuck partially open.

--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/