Hi guys

This is a swap.
the TBI setup is out of 350 Camaro.
It runs smooth in idle.
It runs smooth and with acceptable power output on half and full throttle.

But at cruising throttle it tend to die.

The least amount of throttle it tend to die with load same as in neutral.

I'm not know were to look for.

Many thanks
Rosi

 

What is your feed line fuel pressure. Do you have any codes. Did you use a 350 knock sensor.

 

I still have the same problem as you.

Here is what I have done, and things you may look into doing as a starting point.

1. Cap, Rotor, Wires, Plugs.
2. TB to Intake gasket - I've heard that these often go -$1.58, try it.
3. Check for vac leaks - Free - Try it.
4. O2 sensor.

Like I said, I still have my problem. If I "Crawl" from a stop (as if looking for an address), just moving the peddle in 1/2-3/4 of an inch, the vehicle will chug chug and die, or sometimes when I'm in stop a go traffic and the throttle closes suddenly, or at other time, just cruising at very low engine speeds.

 

UPDATE:

My fix -

What you will need:
2-3 cans of carb cleaner depending on condition
New IAC motor.
Gasket kit for the TB.
Wire brushes, and soft bristle brushes.
About an hour to an hour and a half.


Remove your TB. Remove the IAC. Remove the TPS. Remove the Injectors. Disassemble the TB, and start cleaning! Be sure to pay special attention to the vac. ports. - I actually cleaned HARDENED debris from them! Clean until you can't clean anymore, spend at least 45 minutes on it.

Reassemble your TB, install the new IAC. Remove the EGR valve, and clean those intake manifold ports as well as the egr's ports. Check to make sure if you push the "Base" of the vac assembly up of the egr, that air is pushed out of the vac. port on top of the egr. If air is not coming out, the egr valve is shot and you will need a new one.


My vehicle has never run better! Pulls great, doesn't stall!

 

Thatll do it. The ecm has no way of knowing where the IAC really is so if its stuck or sluggish itll cause all sorts of problems.