[Diy_efi] DTC 11 and 34

Tue May 24 01:18:29 UTC 2005

Hello all,
Got a Nissan Vanette with engine SR20 model 1998. I've got DTC 11 and 34
coming up and the engine just die. Ever encountered this problem? Pls help.
Juls
----- Original Message -----
From: <diy_efi-request at diy-efi.org>
To: <diy_efi at diy-efi.org>
Sent: Sunday, May 22, 2005 4:51 PM
Subject: Diy_efi Digest, Vol 3, Issue 8


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> Today's Topics:
>
>    1. Re: swap part questions (Mike V)
>    2. Introduction (John Christensen)
>    3. Re: injector sizes 1998 vortec 454 (Jim Butterfield)
>    4. Measuring Pulse Width/Duty Cycle of an Injector?
>       (Marcello A. Belloli)
>    5. Re: swap part questions (David Allen)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 21 May 2005 09:16:42 -0400
> From: Mike V <diyefi at enzoco.com>
> Subject: Re: [Diy_efi] swap part questions
> To: diy_efi at diy-efi.org
> Message-ID: <5.1.0.14.0.20050521091107.00c30af0 at enzoco.com>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> At 09:53 PM 5/18/2005 -0500, you wrote:
>
> >ftp://diy-efi.org/uploads/sgr/transmount.jpg
> >
> >This is the stock '98 4L60E mount.  My tunnel doesn't have quite as much
> >room as the pickup did, I'd like to find a mount that's about an inch
> >shorter.  I thought a Camaro might have something shorter but it's
> >completely different, at least in '98.  Any suggestions for a different
> >year or model that might put the trans closer to the cross member?
>
> Have you already made full use of the trusty sledge-O-matic on the trans
> tunnel?
>
>
>
> >ftp://diy-efi.org/uploads/sgr/airbox.jpg
> >
> >The stock air inlet has some kind of box attached, about 6"x6"x6", for
> >noise reduction?  Doesn't fit under the hood, so had to go.  Any clever
> >ideas for filling the hole where it connects?  A 2" PVC cap almost fits
> >but is just too small.
>
> I'm not getting the big picture on the airbox setup.
> If you can send me some more pics or diagrams, i might have
> some tubing parts I can send you.
> Most of my spares are 3 inch I think.
> MIke V
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 21 May 2005 09:36:38 -0500
> From: "John Christensen" <johncgg at comcast.net>
> Subject: [Diy_efi] Introduction
> To: "EFI-DIY List" <diy_efi at diy-efi.org>
> Message-ID: <001901c55e12$81a629e0$660fa8c0 at hpmedia>
> Content-Type: text/plain; charset="us-ascii"
>
> Hello everyone!
> I have been lurking on the list a while. It's obvious that I am a real
> newbie on the Fuel Injection front.
>
> I have had my 1984 El Camino for about 12 years. It became a project about
6
> years ago. It's also a daily driver (for lack of funds). The project is
> documented in the signature file.
>
> I recently had to convert from a Carter AFB carb setup, to TBI, in order
to
> pass emissions testing in the Chicago area. I had passed the last 2 rounds
> with fine tuning (barely), but the standards are stricter now. The
emissions
> controls have been modified or excluded for the most part, by the previous
> owner, when it was in Iowa, and there was no testing.
>
> After the conversion, I passed with Flying colors, and should not have to
> worry about this in the years to come.
>
> There was a recent thread on the air intake, and I wanted to show what we
> did on my son's 1996 Bonneville for cold air. I used the Electrical
conduit,
> and I want to say it was 3", but it fit perfectly in the rubber flex, that
> houses the sensor for the system. (Intake Air Temp?). See:
> http://home.comcast.net/~sk8nate/intake.htm
> Time to clean that filter.... maybe this afternoon.
>
> Now for the series of newbie questions.....
> This is the conversion: http://www.myelcamino.net/tbi1.htm (4 pages) The
> part numbers are on a chart pictured on the first page (click for a larger
> view). They are basically the numbers suggested by the Painless
Performance
> kit for wiring this conversion.
>
> I need to make sure I have a complete set of new plugs, cap and rotor to
> have a base line. But as I said $$ does not come easy at the moment. Once
I
> have this done, I want to have a systematic approach to making it run
> better, and I think this list can help.
>
> I have some hesitation, and some trouble holding a consistent speed. Of
> great annoyance, is the fact that the TCC engages about 30 mph when trying
> to drive a steady 30 or 35 mpg, it kicks in & out a lot. I have a switch,
to
> turn this off, on the dash. I would like it to kick in more at 40 to 45.
> Also, when the TCC is engaged, and I try to accelerate abruptly, there is
a
> real nasty time lag before it disengages, or kicks down. It is much better
> with the switch off, but I wondered if there is anything that can be done
> about the responsiveness of this feature. I assume it is the MAP sensor
> input that controls it. Would a different sensor help?
>
> I have a 1 wire O2 sensor, and I really want to put in a 3 or 4 wire
sensor.
> I have some recommendations for that one. The sensor is welded in just
past
> the shorty header collector, and may not be getting enough heat to work
> right (is my theory, but help me here ;) Do you think this is where I
should
> start?
>
> Could the Throttle position sensor have an effect on these functions? I
have
> tossed around replacing both that, and the IAC, because it is a little
> unsteady at idle, even after resetting the IAC.
>
> Could different injectors help overall performance? Or would it be a waste
> of time on such a low pressure system?
>
> Is there anyone on the list that burns chips for the ECM, that could
tailor
> it for a 350, .030 over, TH350C Transmission with a slightly modified
> throttle valve spring (it responds a little quicker, but does not shift
> hard). I have a stock cam, shorty headers, dual exhaust (2.25"?), dual
plane
> intake, cold air through the cowl. The thermostat is a 195 now, but the
> engine really liked the 180 that I had before the emissions fiasco. What
> would a set of custom chips cost?
>
> I know this is wide open, and there are a lot of questions. Please let me
> know if I am in the right place at all. I don't want to be intruding on
your
> list, by being off topic.
> Thank you in advance for your input.
>
> JC
>
> ---
> John Christensen     St. Charles, IL
> 1984 El Camino, 355 TBI
> National El Camino Owners Association #042
> http://www.myelcamino.net
>
>
>
>
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> ------------------------------
>
> Message: 3
> Date: Sat, 21 May 2005 08:14:16 -0700 (PDT)
> From: Jim Butterfield <jimbutterfield at yahoo.com>
> Subject: Re: [Diy_efi] injector sizes 1998 vortec 454
> To: diy_efi at diy-efi.org
> Message-ID: <20050521151416.91193.qmail at web52707.mail.yahoo.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Grand prixs use 36# units... if you want to upgrade, and run about the
same fuel pres... 55-58lbs.... you chould check to see injector PW and if
that number is up in the low 20-22IPW then they are maxed out....
>
> jim
>
> Scott Peitzsch <jlg-sep at comcast.net> wrote:
>
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Section1}I had a set of these a while back and after a great deal of
digging, found multiple
> sources that indicated they flow 22#/hr @ 58PSI.  Unfortunately, that
doesn't
> make them particularly useful for even a mild engine buildup.
>
> -Scott
>
> ----- Original Message -----
> From: Brendan Patten
> To: diy_efi at diy-efi.org
> Sent: Friday, May 20, 2005 6:32 PM
> Subject: [Diy_efi] injector sizes 1998 vortec 454
>
>
>
> I've got a set of injectors from a 1998 Vortec 454 Chevrolet engine, does
anyone have any idea what the flow rate @ psi is?
>
>
>
>
>
>
>
> ---------------------------------
>
>
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> ------------------------------
>
> Message: 4
> Date: Sat, 21 May 2005 20:30:31 -0700 (PDT)
> From: "Marcello A. Belloli" <mbelloli at speedymotorsports.com>
> Subject: [Diy_efi] Measuring Pulse Width/Duty Cycle of an Injector?
> To: diy_efi at diy-efi.org
> Message-ID:
> <11600.202.57.160.158.1116732631.squirrel at www.speedymotorsports.com>
> Content-Type: text/plain;charset=iso-8859-1
>
> Hello Everyone,
>      I'm still working on a datalogger project.  Been doing a lot of the
> software while I've been on vacation in Thailand. I'm still on
> vacation, but can't keep my mind off of this project.  I'm using a
> PIC18F452 as the Micro behind my datalogger.  I've got just about
> everything working.  The one place I'm having problem is the
> understanding of how to read pulse width of a fuel injector.
>      Is there a way of looking at all types of injectors, that will allow
> for an accurate account of timing?  I've been looking at two type of
> injector firing.  Low resistance injectors, which use a driver that
> duty cycles the injectors after the main firing to keep the current
> within limits.  And Higher resistance ones where the resistance alone
> keeps the current down.  Now how do you look at firing time of an
> injector when the driver starts to duty cycle it after 1.2ms?
>      I guess I have one more question too - What is the best way to
> connect to a circuit like an injector driver output?  I figure I only
> really need timing information.  I want to keep the voltage between
> 0-5 volts and apply as little load to the circuit as possible.
>      After looking at this I can understand why my multimeter that has a
> PulseWidth setting has trouble sometimes.
>      Any ideas would be great.    Thanks,  Marcello
>
>
> ------------------------------
>
> Message: 5
> Date: Sun, 22 May 2005 00:38:34 -0700
> From: "David Allen" <davida1 at hiwaay.net>
> Subject: Re: [Diy_efi] swap part questions
> To: <diy_efi at diy-efi.org>
> Message-ID: <006d01c55ea1$46e22ae0$6c00a8c0 at skyhighspeed.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
>   When installing a 700R4 in my 1972 Nova, the crossmember had to be moved
> back and the driveshaft shortened.  Everything else bolted right up-
> shifter, oil cooler lines, speedometer cable, etc.  There was 1/2 inch
> clearance between the trans and the tunnel.  But I kept blowing o-rings on
> the servo cover on the right side of the transmission.  It would suddenly
> start pouring oil profusely out of the servo.  The o-ring would be all
> chewed up or almost missing.  After pulling the transmission twice, I
> finally determined it would push against the tunnel and press in the servo
> cover under hard cornering.  This would ruin the o-ring!  After this, the
> Sledge-O-Matic and Jack-O-Matic were brought into play with great vigor
and
> little restraint on one particular spot on the trans tunnel. Now there is
a
> funny bulge you can feel through the carpet.  But no more servo cover
o-ring
> trouble!
>   Whatever you do make sure no delicate parts of the transmission will hit
> the body when the trans and motor mounts flex. I had 1/2 inch clearence
but
> that wasn't enough.  There's at least an inch now.  And even though the
> o-ring is still intact, there's a mark in the undercoating where the servo
> cover has lightly hit the body.
>   Just my 2 cents worth!
> David
>
> ----- Original Message -----
> From: "Mike V" <diyefi at enzoco.com>
> To: <diy_efi at diy-efi.org>
> Sent: Saturday, May 21, 2005 6:16 AM
> Subject: Re: [Diy_efi] swap part questions
>
>
> > At 09:53 PM 5/18/2005 -0500, you wrote:
> >
> > >ftp://diy-efi.org/uploads/sgr/transmount.jpg
> > >
> > >This is the stock '98 4L60E mount.  My tunnel doesn't have quite as
much
> > >room as the pickup did, I'd like to find a mount that's about an inch
> > >shorter.  I thought a Camaro might have something shorter but it's
> > >completely different, at least in '98.  Any suggestions for a different
> > >year or model that might put the trans closer to the cross member?
> >
> > Have you already made full use of the trusty sledge-O-matic on the trans
> > tunnel?
> >
> >
> >
> > >ftp://diy-efi.org/uploads/sgr/airbox.jpg
> > >
> > >The stock air inlet has some kind of box attached, about 6"x6"x6", for
> > >noise reduction?  Doesn't fit under the hood, so had to go.  Any clever
> > >ideas for filling the hole where it connects?  A 2" PVC cap almost fits
> > >but is just too small.
> >
> > I'm not getting the big picture on the airbox setup.
> > If you can send me some more pics or diagrams, i might have
> > some tubing parts I can send you.
> > Most of my spares are 3 inch I think.
> > MIke V
> >
> > _______________________________________________
> > Diy_efi mailing list
> > Diy_efi at diy-efi.org
> > http://lists.diy-efi.org/mailman/listinfo/diy_efi
> >
>
>
>
> ------------------------------
>
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>
> End of Diy_efi Digest, Vol 3, Issue 8
> *************************************