New List Participant - very new

[Jemison Richard]

Scott,

Interesting.  I think I'll try some injector cleaner.  I'm running out of
ideas here.  Tonight I checked the codes from my ecm and NO CODES.  The
computer thinks the sucker is running fine!  

It has started running up (jumps to 2000 2500 rpm when I stop and put the
car in neutral or if I stop and put it in park).  This is new.  Don't know
what's changed!    I got a Haynes book on Saturn's which has cleared
everything up.   The fuel injection chapter troubleshooting guide lists
(faulty injector, faulty egr, clogged air filter or vacuum leaks) for over
half of all possible problems!   It is the proper format for my
fireplace.....

Rick
Indy

> -----Original Message-----
> From:	Scott Schaaf [SMTP:SSchaaf at ERINet.com]
> Sent:	Wednesday, September 30, 1998 7:42 PM
> To:	diy_efi at efi332.eng.ohio-state.edu
> Subject:	Re: New List Participant - very new
> 
> I am having the same problem,,, 'bout ready to change the TPS.    I dumped
> a BUNCH of injector cleaner in the tank,, and the miss go MUCH better..  I
> guess I must have some plugged infectors!!    The gas wars here in Ohio is
> causing some REALLY SHI**Y gas!!
> 
> 					Scott...
> 
> ----------
> > From: Jemison Richard <JemisonR at tce.com>
> > To: 'DIY_EFI - Fuel Injection Design List'
> <diy_efi at efi332.eng.ohio-state.edu>
> > Subject: New List Participant - very new 
> > Date: Wednesday, September 30, 1998 10:33 AM
> > 
> > Hello and let me apologize in advance for the level of my expertise with
> > regard to electronic fuel injection.  I hope to learn much.  I've been
> very
> > impressed with what I've heard in the last few days.  I have two
> questions.
> > 
> > 1)  I have a '92 Saturn coupe with multiport injection.  It won't idle
> very
> > well at all and dies if the air conditioning is turn on (idles worse in
> gear
> > than in neutral also).  It also has a miss (sudden jerking - happens a
> low
> > to moderate speeds in gentle acceleration mode (20-40mph).  Pressing the
> > accelerator enough to go into passing gear eliminates all problems and
> it
> > runs fine - runs very well on top end also (for a Saturn).  I've changed
> the
> > IAC (my codes were pointing to that).  Oh that Idle Air Control Valve (I
> > don't know what acronyms are standard yet!)  This car has a dual
> overhead
> > cam engine 1.9L.
> > 
> > 2)  The real reason I'm here is that I'm a motorcycle enthusiast and
> want
> to
> > design (or adapt if someone much smarter than me has already done this!
> > This will NOT hurt my feelings any) an electronic fuel injection system
> that
> > would be generic enough in nature to fit many similar engine sized
> Japanese
> > bikes that were carbureted.
> > 
> >      At this point I don't even know where to begin.  Of course, from my
> > perspective, existing units are attractive but reprogramming the control
> > computers is a black box for me.  One thing I've toyed with is single
> board
> > computers (SBCs).  I worked a bit with process control in the
> pharmaceutical
> > industry about 8 years ago and got some experience programming these
> guys.
> > They're cheap and readily available and of late have a lot of
> inexpensive
> > digital and analog sensing options.  Big question is, has anyone gone
> down
> > this path and if so, is it worth looking at?  
> > 
> >      I again apologize for what are probably pretty simple (and possibly
> > silly) questions.  I'm just looking for some good initial direction to
> > pursue.  Any help will be gratefully received!
> > 
> > Rick
> > Indy