Re: Re: RE: Stock Injector Servicing

From: Bob Tom (tigers@bserv.com)
Date: Wed Feb 28 2001 - 18:59:53 EST


At 11:54 PM 2/27/01 -0600, you wrote:
>Yes I really believe it did, and does. My truck runs incredibly strong
>lately, especially after I put on a NAPA brass terminal dist cap, NAPA dist.
>rotor, new secondary pickup coil, new Accel Super Coil, and a fresh set of
>Autolite Coppers. I mean my truck hasnt ran this good in a long darn time.
>Well other than the stalling problem I am still having 2-3 times a week.
>Still when I pulled the plugs after they were in for a mere 2,500 miles they
>looked like the truck was running really rich, and after being in for 5,000
>miles, they were still the same 'rich condition' looking plugs. The new ones
>have only been in for 250 miles, but I bet if I pull them at the 1,000 mile
>marker they will show running rich symptoms again. I am just thinking maybne
>my ole GenII OBD-I Dak doesnt like the FMS#19s all that well. Figured I
>could get the stockers cleaned up and balanced/blueprinted and put them in
>and see how the truck runs then.
>Whatcha think? Kyle 93 Dakota 4x4 V6

I have read that the FMS#19s are rated differently from our OE #19s. They
are probably putting out a bit more fuel per pulsewidth and would explain
the 'incredibly strong' sensation that you're experiencing. They might
also be the reason for your plug conditions. Do you remember what
your plugs showed when you were using the OE injectors?

I would personally pull the plugs now. See and record their condition.
Clean the plugs. Put in the OE injectors for awhile and see if you still
get the same 'incredibly strong sensation'. Then, after about the 250 miles,
pull the plugs and see what their conditions are and compare to what
you had recorded.

I know that, when I was testing the FSM#24s, I too had the incredibly
strong sensation at part throttle but, for my engine setup and operation,
I bogged terribly when I went to a quick WOT ... too much fuel being
dumped in.

Hope this helps.

Bob Tom Burlington, Ont., Canada
'97 Dakota Sport, 4x2, CC, Flame red, 5.2L, auto., 3.92SG



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