Technical opinion: Not really sure at this point.
"Gut" Feeling: Sensors and timing curve.
I'm going along the same lines as you on this one. If you notice on the
chart, the '99's have the most problems. What I want to know is what did
they change and/or did they change brands/manufacturing plants for the sensors.
Maybe at the picnic next month, i'll have a chance to check out several
more Dakota's.
Here's one more piece that might help though: Looking at the 3923 Autolite
Plugs and then the 5224 (what's recommended), the 3923's don't use a
"Special Projected Power Tip". I installed some 3923's in my Dak (granted
it didn't ping to begin with) and found that the truck ran a lot smoother
than with the 5224's. (Been running some tests with NGK V-Power vs.
Autolites for about two months now.)
- Bernd
At 12:33 PM 01/31/2000 -0700, you wrote:
>Bernd, are you sure that the delay is programmed in? Someone else was
>saying htat it was as if the computer was too busy to deliver the spark.
>But then wouldn't ALL similar daks ping?
>
>I'm thinking a weak connection in the wiring to a sensor, an injector, or
>the distributor may cause a delay? That way some daks could have good
>connections and some weak. Eh?
>
>My exhaust leak theory didn't pan out, plugged the pipe and listened with
>some hose and I think I'm all sealed up. Reading through the FSM, an
>intake leak or bad EGR is consistent, but I haven't checked yet. Also the
>wiring theory. I'm slow so it'll probably be summer before I check the
>next thing. :) I tried a bottle of octane boost and it didn't help when
>added to 91 octane. ?! Haven't tried plugs yet.
>
>mike
>
>michael.crotty@m.cc.utah.edu
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