On May 31, 1:45 pm, " wrote:
I have a '94 Ford Ranger pickup. It has only 62000 miles on as I ride
my bike a lot. It has been a good runner until recently when one day
I
started it and the engine ran as rough as if one cylinder was
missing.
Out on the street it smoothes out a little but lacks power. Since
it’s drivable I’m trying to troubleshoot it myself rather than take it
someplace where they will sell me a lot of parts I don’t need.
It has the 2.3 L 4 cyl. Engine with distributorless ignition. I’m
thinking that the
probability is that the problem is not the ignition because of the
relatively low mileage, the two ignition modules and two plugs per
cylinder.
Does this make sense? My guess is a clogged fuel injector. I put in a
bottle of Gumout fuel injector cleaner and have driven it about 40
miles with no results.
How long does it usually take injector cleaner to work?
Is it possible to use a scanner on it? I don't see anything about
that
in Chilton's.
Any other ideas?
Engineman

If it's throwing a check engine light you can check codes on the OBD-I
on the '94s with a jumper wire on the diagnostic connector, turn on
the key and count the flashes between pauses.

These guys probably have a link to the codes somewhere in there..
http://www.therangerstation.com/tech_library/index.php

ah yes, here we go:
http://www.therangerstation.com/tech_library/OBD_I.html

Hope that helps,
--Glenn Lyford