Gas in intake?
 

So today, i took out my throttle actuator to rewire it....easy....

as i removed the resonance flap (box above the intake) i could see some liquid in there (probably some oil), but there is a really strong smell of gas??? yikes.....:eek:

where is the gas coming from....???

car has a mixture problem (obviously), throwing codes 9, 13 on pin 8 ....

I can think of two locations for gas to come in:

1-Fuel pressure modulator: but i did pull the vacum hose multiple times, and never smelt gas or seen any liquids.

2-My Purge valve seems to be stuck wide open, with no pulsation.

Please advise, as i am worried this could be a bigger problem somewhere..i hope not :confused:

bump for help with this.....

You mean something like this?


http://farm5.static.flickr.com/4030/...4936a17d_o.jpg

This is from a M103 inlet manifold. However this is very common. Over time some leakage occurs. I just generally clean this out - occasionally - when I'm bothered.

I think that is oil for the most part. I have some of that too, but today i has some strong gas smell from inside the manifold. Not sure if it gas vapor, or actual gas......but i am thinking gas

Most common source is the fuel pressure regulator, forward end of the fuel rail. A hole in the diaphragm will allow fuel to be pumped down the vacuum line and into the intake causing a rough idle after running a few minutes.

I've did the (unplug vacuum line at regulator test) multiple times while the engine is running. no liquids or smell. is that test sufficient or should i go ahead and change it?

That test should be sufficient. A better test is to mityvac the line from the FPR. If it holds, it's good.

I would vote for a drippy injector. Common, oh so common.

oooh, missed that M104 part. I don't know if what I said applies to M104 as it does to M103. Sorry.