My New TB, will work right?

[GSTdude06]

I just bought this 1g TB, the guy said everything was new, all sensors work and was bored out to 63mm. Will it work? What do I do about that 4th nipple?

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[Spidey]

Get a vacuum cap for the 4th nipple. I also hope you are planning to port-match your intake manifold, otherwise it will be worthless.

 

[GSTdude06]

I am, that 4th nipple to be capped off the one at the slant? And are the other labled on top like on the 2g so the right hoses are hooked up?

 

[Spidey]

Correct. Here's an excerpt of the 1g TB swap instructions found at RRE:

The three straight vacuum fittings are marked the same as the 2G fittings. The fourth angled one will be unused, cap it off.

One at a time, remove the old short vacuum lines and replace them with longer ones.

If you are still running with your EGR, the following will be necessary for proper EGR:
It's simple, cap off the E line as well as the angled line (marked A1 or something). Then with a "T", split the P line to go to where P and E used to go.

In effect drive the E line, (EGR) with the source from P.

The problem is that the 1G EGR and the 2G EGR are sourced differently inside the throttle body. The 2G EGR has vacuum at idle but the 1G does not.

 

[GSTdude06]

Closed TP Switch and TP Sensor Adjustment [2G]

1. Disconnect the connector of the TPS.
2. Connect ohm meter between terminals 3 and 4.
3. Insert a feeler gauge with thickness 0.45mm (.0177 in.) between the throttle stop and the throttle lever.
[Fold a piece of paper in half 4 times if you don't have the feeler -Ed.]
4. Loosen the TPS mounting bolts. Turn the TPS all the way counter
clockwise.
5. Check for continuity in this condition.
6. Slowly turn the TPS clockwise until the point where continuity and
non-continuity is found (pins 3 and 4).
7. Tighten the TPS mounting bolts.
8. Check the voltage between pins 2 and 4 of the TPS with the ignition
switch on, but the engine not started.
9. Standard value: 400 - 1000 mV
10. Remove the feeler gauge.


I dont understand this at all. Any explain it a little better??

 

[titogs95]

It is all about adjusting the TPS.
here is a ilustrated link.

 

[GSTdude06]

so I dont want the forth one to work? why dont I jsut take mine off my old TB??

 

[titogs95]

so I dont want the forth one to work? why dont I jsut take mine off my old TB??

No. you are going to use the TPS of the 2G. the 1G won't work because it have 3 pins and 2G has 4 pins.

Read this thread.

You use the 2G TPS and modify the adjustment procedure to put the feeler gauge between the 1G IPS and the throttle pulley before setting the 2G IPS.

Steve

 

[GSTdude06]

thanks yall

 

[titogs95]

thanks yall

you are welcome and don't forget to adjust it with the feeler gauge with thickness 0.45mm (or 4 layer of paper) it is very important.

 

[GSTdude06]

Ill get some help on it my step dad is a mechanic so he will help me.