speckles

Ok so here is the low down. 90 N/A. No engine mods.

This morning I started the car, then checked my fluids and noticed I was leaking fuel. I drove to work, got o-ring seals for the injectors and then drove home. Got home, took the intake off, replaced the o-rings on the upper injectors, slapped it together, and now it bounces between 1K and 2K. just up and down. throttle does nothing at all. All my vacuum lines are on, all sensors are connected. I have double checked everything. I think the ECU may need to be reset, so I left the battery off over night for tonight. But anyone think they can lend a helping hand?

KhanArtisT

iTrader: (2)

Intake manifold gasket/connection leak.

speckles

Hmmm Cause my gaskets are good, and all my vacuum connections are tight. I have no vacuum leaks. I used a leak tester and the only "leaks" that I had are from normal areas that leak when the the engine isnt running (vacuum valves and the TB and such) I just hope when I get home later I can get her to run right. Its really killing me!

KhanArtisT

iTrader: (2)

I would spray the connections between the manifolds with parts cleaner. The S5 NA manifolds are tricky to install. If you torque the bracket bolts first (on the drivers side) and then the other side, it can result in a big leak causing the condition you're describing.

I missed the part where the throttle doesn't do anything though, lol. Check the cable for kinks and adjust it.

speckles

cable is fine. and I dont tighten the bracket bolts as there are none on the car haha. I have spent all night and day on the computer trying to find out why it happened.

satch

iTrader: (1)

If the car idled fine before you made any repairs then you need to retrace your steps and you will likely find the problem. One thing you could do is measure the Green/Red wire in the TPS plug for voltage after the car has been thorougly warmed up and the voltage reading ought to read 1 volt. A bouncy idle is usually a function of a misadjusted TPS and or vacuum leak.

Does the car have cruise control? If so make sure the cable running to the cruise control is not in a bind. Also, with the car idling, try putting some load on the car such as turning on the A/C and headlights and see if that stabilizes the idle or not.

speckles

No A/C. I did let it warm up and even checked the TPS as well. Its all normal. I think what I will do is take it all back apart, and see if something went wrong down the line. One thing I know that leaks, but not enough to cause this I would think, is the injector seats on the manifold. they were sealed with RTV cause they leaked a bit it looked like. So maybe sealing them then going from there.

beefhole

iTrader: (29)

20 year old vacuum lines tend to cause issues, especially since you have moved things around. While they appear to be connected, they can also be cracked.

HAILERS2

What do you mean by "the throttle does nothing at all"?

speckles

the lines are all silicone hosing except for the one huge one that goes from the upper intake to lower.
well all it does it make it bog out.

HAILERS2

Disconnect the tps and try the throttle again .............if you have not already done that.

speckles

Ok so this afternoon I put it all back together. Hooked the battery back up, and started it. Idled at 2K before it went down to 1500 or so. I took a few stabs at the throttle, and it worked! I noticed that a switch next to the TPS didnt move yesterday when I tried, and today it does. I also double checked the fuel injectors and the leak stopped. And as an added bonus, the injector seals on the manifold are sealed thanks to some silicon hose my local shop told me to use. So pretty much, it runs great, actually better than last week. Thanks for everyones helps.