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Re: OT (sorta)
>> <snip>[color=blue]
> The EGR recirculates some exhaust gas into the combustion chamber to
> lower combustion temperatures and reduce oxides of nitrogen (NOx). I
> doubt if the bypassed EGR valve caused the high HC readings. Some
> people bypass the EGR valve in hopes of improving performance and/or
> drivability.
>
> A dirty fuel injector could theoretically cause the HC to be high at idle.
>
> How does the engine run at idle? With a set of set of park plug wire
> pullers, carefully remove one spark plug wire at a time while the
> engine is running. The engine should run noticeably rougher when the
> spark plug wire is disconnected. If the engine runs the same when a
> particular wire is disconnected, then that cylinder was not firing.[/color]
It idles smoothly. I don't think any of the plugs aren't firing but
we'll make sure. Thanks.
jor
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