how does tbi work

Bruce Plecan nacelp at bright.net
Sat Dec 11 03:15:57 GMT 1999


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  I presently own a 79 fiat spider that I would like to convert to tbi =
(from an 85 4 cylinder chevy cavalier). i have a 1.8 liter engine in the =
fiat, the chevy is a 2 liter engine. does this year tbi operate in open =
and closed loop mode.

  Yes.

   what sensors would i have to include, which could i ignore.

  Use all of them.  Start with learning the basics, and build on that.  =
Don't try reinventing the wheel with your first go around.

   i understand that the chevy injector works mainly off the distributor =
to know when to supply fuel, using the throttle position, engine temp =
and maf sensor to determine how much fuel to inject. am i out of my mind =
or is this a (with some work) doable project.

  Given time, energy, money, and information, about anything is =
possible.
  Ya need to do your homework, and the level that you do that will =
predict your success at the conversion.  Homework here is reading the =
gmecm AND diy_efi archives for all the TBI postings.

  enjoy this forum, even if i need a ladder for some of the discussions, =
as they are over top of my head.

  It will get much worse.  I still get to where I can't even word the =
questions
  Grumpy

  larry c.

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  <DIV><FONT face=3DArial size=3D2>I presently own a 79 fiat spider that =
I would=20
  like to convert to tbi (from an 85 4 cylinder chevy cavalier). i have =
a 1.8=20
  liter engine in the fiat, the chevy is a 2 liter engine. does this =
year tbi=20
  operate in open and closed loop mode.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT size=3D2>Yes.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>&nbsp;what sensors would i have to =
include, which=20
  could i ignore.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Use all of them.&nbsp; Start with =
learning the=20
  basics, and build on that.&nbsp; Don't try reinventing the wheel with =
your=20
  first go around.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>&nbsp;i understand that the chevy =
injector works=20
  mainly off the distributor to know when to supply fuel, using the =
throttle=20
  position, engine temp and maf sensor to determine how much fuel to =
inject. am=20
  i out of my mind or is this a (with some work) doable =
project.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT size=3D2>Given time, energy, money, and information, about =
anything=20
  is possible.</FONT></DIV>
  <DIV><FONT size=3D2>Ya need to do your homework, and the level that =
you do that=20
  will predict your success at the conversion.&nbsp; Homework here is =
reading=20
  the gmecm AND diy_efi archives for all the TBI postings.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>enjoy this forum, even if i need a =
ladder for=20
  some of the discussions, as they are over top of my head.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT size=3D2>It will get much worse.&nbsp; I still get to where =
I can't=20
  even word the questions</FONT></DIV>
  <DIV><FONT size=3D2>Grumpy</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>larry =
c.</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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