Let me know if you want to sell the 21# injectors.
Mark Kuzia
1998 Dak 5.2L 5-spd
mskuzia@comcast.net
----- Original Message -----
From: <phatdak98@comcast.net>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Tuesday, March 21, 2006 12:28 PM
Subject: RE: DML: Hard starting fuel injectors?
>
> Thanks for the input, I just ordered the 19# FMS injectors due to the fact
> that
> the stock ones are shot. That will be the first place I start by replacing
> the
> 21# with the FMS 19#. Will let you know the out come. Should be able to
> swap
> them this weekend.
>
>
>
> In article <000301c64ce8$40438bd0$9e544b0c@Dakota>,
> bpracing@worldnet.att.net
> ("Ray Block") writes:
>>
>>
>> > -----Original Message-----
>> > From: Terrible Tom
>> >
>> > phatdak98@comcast.net wrote:
>> > > <snip>. Here's what I got. 98 CC
>> > 4x4
>> > > 5.2l Hypertech power programmer, 3" cat back, Intense performance
>> > > stage
>> > II
>> > > intake, 160 stat, and Poweraid throttle body spacer. <snip> Installed
>> MSD Superconductors, Autolite
>> > 3923's
>> > > .040, Accel supercoil, Accel cap and rotor, Accel 21# fuel injectors
>> > > and
>> > > relocated IAT sensor to intake tube. <snip>
>> > The
>> > > problem is the truck is hard starting, even after sitting just a few
>> > minutes.
>> > > <snip> I'm stumped and any help would
>> > be
>> > > appreciated.
>> > >
>> > > Thanks Kevin
>> > > 98 CC 4x4 Deep Amethyst
>> >
>> > That's an interesting set of modifications. I would suspect the
>> > injectors first. Try swapping your stock injectors back in and see
>> > what
>> > happens. I think 21# injectors are a little too rich for a truck with
>> > only those kinds of mods. If you were running a blower or some other
>> > radical stuff I would say you could use them...
>> >
>> > Pull the plugs and see if they are fouling. With the 160 degree
>> > thermo,
>> > the colder plugs, the power programmer *and* the bigger injectors -
>> > your
>> > engine is going to be sucking down gas like nobodys business - betcha
>> > any money its running rich.
>> >
>> > <snip> Your engine probably isn't getting warm enough to cook off all
>> > the fuel and you are not getting good combustion. Also a good way to
>> > roast a CAT.
>> > -------------------------------------------------------------
>>
>> Kevin, I think Tom hit the nail on the head. There are several mods you
>> have that contribute to a richer mixture. I'm speaking from personal
>> experience here as I've tried them all and my trusty scanner and drag
>> strip
>> time slips clearly show what works and what doesn't.
>>
>> 21 lb injectors = way too rich. Even "new" 19 lb Accels are too rich.
>> 160 degree thermostat = richer mix.
>> IAT sensor in intake tube = richer mix.
>> 3923 plugs = too cold for normal driving with a rich mix.
>>
>> You didn't mention fuel octane but higher = slower burn.
>> Even with all my mods (see dragtruk link) anything over 92 slows me down.
>> HTH.
>> Ray
>> http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
>>
>>
>>
>> .
>> .
>> .------------------------------------------------------------------.
>> | Make your plans NOW to attend the National DML Meet in Colorado! |
>> | Date: July 15-23, 2006 - More info: http://meet.dakota-truck.net |
>> `------------------------------------------------------------------'
>>
> .
> .
> .------------------------------------------------------------------.
> | Make your plans NOW to attend the National DML Meet in Colorado! |
> | Date: July 15-23, 2006 - More info: http://meet.dakota-truck.net |
> `------------------------------------------------------------------'
>
>
.
.
.------------------------------------------------------------------.
| Make your plans NOW to attend the National DML Meet in Colorado! |
| Date: July 15-23, 2006 - More info: http://meet.dakota-truck.net |
`------------------------------------------------------------------'
This archive was generated by hypermail 2b29 : Sun Apr 02 2006 - 18:27:15 EDT