If you remove it, there will be some (light) blackish/brownish residue on
the tip (that's normal). If there's an excessive amount though and some of
the openings are covered, it may be plugged up. (Unfortunately, you can't
clean them with regular cleaners, but a light scrubbing with a brass-wire
brush may help a little bit.)
Also, how old if the Catalytic Converter? A plugged Cat can cause this in
some cases.
The other item to check is the throttle body and all the ports. Make sure
that they're all clean (especially IAC port).
Last item to check...compression. Make sure that they're all within
spec...if you're on 130+ miles, this may also be due to normal wear on the
engine.
- Bernd
However, if everything checks out fine, go with the old saying: "If it
works...don't fix it." Leave it be and just drive it. :)
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Kyle Kozubal
Sent: Sunday, November 05, 2000 1:55 PM
To: dakota-truck@buffnet.net
Subject: DML: Re: RE: Tune Up Done/Questions
> (1) Leaking Injector(s)
> (2) Poor Ignition System
> (3) Bad O2 sensor(s)
> (4) Running too cold
> (5) Rush Hour Traffic with "cold" plugs
The leaking injectors was my first assumption. I double and triple checked
them, and can 100% rule them out. The ignition system........well I know
that is not the problem. I dont run a cold plug, just the recommended 3924s,
so that is also out. I guess the last thing to check is the 02 Sensor.
Unfortunately it has only been in my truck for 31,000 miles; the stock
sensor was replaced at 100,000 miles and looked good. Can a visual check of
the sensor's tip verify anything? I replaced the original with a dealer 02
sensor, and hoping I dont have to spend another $85ish on one. A bad 02
sensor also wont necessarily throw a fault code either. Hmmmmm.
Kyle
93 Dakota 4x4 V6
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