> -----Original Message-----
>
> Know what the vacuum should be at idle ? The scanner says around 18.5"
> I'll take off the throttle body and clean it this weekend..
>
> Victor
>
In your original post you mentioned "cleaning" the PCV valve. For no more
than they cost, I'd recommend getting a new one. :-)
Your vacuum seems fine for a stock engine. Mine's 15.3 at idle with all the
mods I have. Mine was idling a little rough at normal idle speed and the
solution I found was to turn the idle stop screw in 1/2 to 1 turn. If you
have a stock TB there will be a thin metal plug hiding the adjustment screw.
Use a sharp punch to tap a hole in it and then pry it out. Adjustment will
require a torx bit. IMPORTANT: Do this adjustment with the engine OFF.
Also, if you disconnect the battery after increasing the idle speed, the PCM
will adjust for it and lower it back down. Whenever I need to do that, I
turn the adjustment screw back to stock until the PCM has relearned for a
day, then adjust the idle speed up again.
RayB
http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:47:04 EST