What are the symptoms for too much intake?

[vristang]

vristang,

Ok, the only thing we could find is that on the rear runner (last one), we noticed some oil on the gasket when we pulled the upper intake off. I figured it came from the PCV vacuum line (we forgot to add the screen at first, duh-huh). the oil seemed to surround the port. We have another gasket on order. Could this be causing the leak? Would this be the upper to lower gasket or, please don't say a lower intake gasket?

Oil in the intake is pretty common, and as you figured, is usually due to a pcv problem. With the screen in place you should be fine, but keep an eye on it.

I don't think the oil would cause the leak though.

I just read your first post again and I have to wonder if maybe the TPS is the problem. Did you reset the tps? Do you have access to a tps that you could swap on to your buddies car, just to check if this is the problem? Do you have a voltmeter to test the tps? (you should be able to manually open the throttle and see the voltage increase steadily and predictably)
It is a long shot, but worth looking at.

Have you sprayed the Starting Fluid around all the vac lines that run around the rest of the engine bay?
It wouldn't be the first time one of the original hard plastic vac lines cracked while working on something else under the hood.

that is all I can think of right now

jason

 

[19stang67]

Have not checked the TPS, but from what i have been told and read so far, i don't think it would cause a cough in the exhaust and a slight stumble.

Yeah, i sprayed carb cleaner all over the intake and the hoses attached and noticed no change in idle. Did not chech the hard lines that run along the firewall though. That will be added to the check list. What about the o-rings for the fuel injectors? we used the same ones and they seemed ok, but what if one was bad? i sprayed around them as well, except for the ones under the upper intake, could not get to them.

 

[vristang]

If the o-rings on the injectors were bad you would get fuel on the lower intake, and you would notice it.

the reason I brought up the tps is that a glitch in the output voltage can cause the computer to think the throttle blade is more or less open than it really is. Just resetting the base idle voltage won't do any good. You would need to check the output of the sensor through its range of motion.
0% throttle----1v
30% throttle----1.5v
50% throttle ----2.5v
60% throttle----3v

This would be a good output range.

Below would be bad.

0% throttle----1v
30% throttle----1.5v
50% throttle ----4.2v
60% throttle----3v

Sometimes the tps can fail this way.

Like I said it is a longshot, but it could be that simple.

jason