Attached to TB: TPS, IAC (Idle Air control)
Attached in other locations: 02, MAP (Manifold Absolute Pressure), KS
(Knock Sensor), ESC (Electronic Spark Control), CTS (Coolant Temperature
You'll also need an electronic fuel pump pushing 9-13psi, and the
distributor off an 88'-95' truck.
Don't you have any junk yards? Snag a couple of quadrajets and grab a haynes
rochester repair manual and a rebuild kit. The multiple q-jets should give
you a selection of jets/needles and exchangeable parts. I've also read that
already-remaned carbs aren't good for DIY reman people, because when they
refinish it they obliterate numbers on the carb. Then with those you can
make one good carb out of 2-3 mediocre ones. I haven't gotten around to this
yet, but from what I read and what I've already done to it (taken it apart
and 'fixed' it for my means) it doesn't look like it will be hard
Personally I wouldn't consider a TBI for an '85. And no it isn't just
because I hate 'car' computers (pls don't start another troll/flame war here
guys) If you want fuel injection, get an edelbrock intake manifold/ EFI. It
is basically direct port injection (8 injectors for 8 calendars) from what I
understand (monster garage, bronco build-up). That's the only way I could
I also think you will need, Throttle Position Sensor, a properly located O2,
and a knock sensor. However don't forget the temp sensor! Basically all the
sensors the computer will need to make it happy... I just think it's a can
of worms. I'm pretty sure without some custom head work that you couldn't
even mount a knock sensor that wouldn't throw codes. My personal feeling is
that without allot of know-how, and time, you'd end up with a 2bbl piece of
junk that would never go into closed loop mode, saving you no gas and not
having the balls a 4bbl q-jet could have. Remember, no O2 and it will stay
in open loop mode, no temp sensor and it will stay in open loop mode as
well. No TPS and the feed back carb wont know what too do...no knock, no
this that and the other thing and the comp will say "whaaa i suck dog nuts"
All statements in this post can be proven to be fictional.
I have plenty of junkyards. I also have a good Q-jet on the 350 now. I don't
like carbs. Never have, never will. The time I would have into tearing down
3 or 4 carbs and rebuilding one, would be about what I would have into
installing a TBI.
I wouldn't be considering the swap unless it were a decent deal. I'm looking
at $150 for the whole thing plus a couple of sensors.
I think that I have enough experience to install a measily little TBI for
the chevy. :o)
I look forward to easy starting and the "never have to screw with it"
Sounds like a pain in the balls. Guess I'd go quadra because I could
basically just walk out with a few for free from my junk yard. My quadra has
never seemed to work wrong. Only thing that doesn't work with the carb,
isn't a part of the carb! As for the fuel injection, I was just saying how I
would justify it to myself. Not that I could afford it right now, but
wouldn't it be the next best step!? Then 4-bar suspension, about 12" of
travel, shaved fenders, premium warn locking hubs, 5.ish gears, 55" tires,
bead locks, 6-point roll cage, 4 33" subs each with their own 1200watt
amplifier, 16 tweeters, and 46 midz, a color-shifting paint job, a 30,000lb
winch, 120" high lift jack, an 80inch plasma in the back, about 90 combined
inches of LCD all around, PS/2, 200cd changer, et al....... :-)
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