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Discussion Starter · #1 ·
Alright... I have been playing with this for a while now... When i pull the codes on my car i get 32 for the EGR, and 94, and 44 while running.
94 and 44 are for the primary and secondary air system or termactor solenoids from what i have found out. The air pump is still on my car and still hooked up, however, the car has no cats and the pipe that goes to the exhaust from the air pump is disconnected.
Tonight when i was playing with it, another guy noted that my car hisses when i tuen it off.. .i thought this was normal, but he said his doesn't do it, and sure enough, only one other car at the club does hiss... it's a 91 saleen.
The hiss seems to be coming from somwhere behind the intake under the 10 pin connectors maybe... i tried to find it with no luck. I tried pulling of vaccum lines and whatever and i could not find out what it was. I alson noticed that when i pulled off the EGR vaccum line and stuck my finger on the end, there was NO vaccum at that little line while the car was running. This i believe may be why i am getting a EGR error even though thing thing is new. My car does not run all that great either. I have 3:55 gears and can't get it to break the tires loose in only second gear...

Note:
The hiss is NOT coming from the air pump line that is unhooked.
There are other lines that i checked that were getting plenty of vaccum.
The engine is stock.

WHAT'S WRONG WITH THIS THING... !?!

HELP ME ... !?!
 

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Discussion Starter · #5 ·
oKAY,

I checked the vaccum on the EGR Valve again while i reved the engine up... Not too much though. Using my finger on the end of the line to feel for vaccum, I would say that there was none, or barely any at all. Is there suppose to be enough that i would feel it. It also seems like i can hear a constant hiss from behind that intake, but it's hard to tell because the smog pump is dumping it's air on the passager side too.
Looking at the routing of the vacum lines, doens't the vaccum source for the EGR come from the same plave as the left and rtight thermactor solenoids...

I hope someone has an idea of what might be wrong...
Those 94 and 44 codes a bugging me...
also the 32... I wouldn't doubt that the PCV is plugged, it's hard to get at, I have never looked at it, and i doubt the people who ownned the car before me ever would have either... But does anyone know if a PCV problem will post a code on the computer.???
 

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Discussion Starter · #6 ·
Could i blow air back into the egr vaccum line to tell if there was a leak, or is there a check valve somwhere...?
 

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Discussion Starter · #8 ·
Sure enough the PCV valve was pulled from it's seat... I would imagine it has been like that for over a year now... I dumped my oil this morning along with a engine detergent... then dumped it again to try and clean out the crankcase... I noticed that my valve cover didn't look so clean inside anymore... I am just about wreaked over this... Does this mean my engine is toast or is it ever gonna feel like it did before. I am afraid too much damage is done.
I am also having vaccum problems still with anything attached to the EGR. I borrowed a vaccum tool from a friend and started testing different places. Starting at the EGR, the vaccum doesn
't hold all the way to the intake, along with the line coming down from the intake to the canister at the front lower passager side of the engine bay. If i add vaccum to the EGR itself, it doesn't hold it either.
Needless to say, i don't really know what i am doing...

I am gonna disconnect the battery this afternoon and take for a drive then pull codes again and see what happens. After i take the smog pump off.

Thanks guys,
Is there anyone else that can tell me what should be going on in there...
 

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Discussion Starter · #9 ·
So,

The pcv is back in, the smog pump is off with the vaccum line to it plugged. the holes in the rear of the heads have been blocked off with plugs.

I reset the computer by removing the positive battery cable. I ran the car around town this morning...

I am still getting the same codes... 32, and then 94,44 while running.
The only thing i can see is that there is very little vaccum going to the sensors in these locations to create the codes. I can't seem to find out where it goes thought. I followed it so far to the center vaccum connection just behind and underneath the stock upper intake. There seems to be a metal pipe that the vaccum line connects too. If i check the vaccum on it, it doesn't hold any vaccum either. Does anyone know where this goes. I don't feel like taking off my strut tower brace and intake just to see where a vaccum line goes too.

PLEASE HELP.... even if someone could test theirs for me to see what their car is doing..?
 

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Discussion Starter · #10 ·
ttt

Common guys...? Does anyone know what is going on here....?
 

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Discussion Starter · #14 ·
Alright... now we are getting somewhere

Firstly, The big hiss you guys are hearing, is the crankcase trying to dump pressure throught the PCV Valve. The one on my car was pulled from the block and releasing into atmostphere... bad because all the crap goes down the hole into the crakcase from outside. So if you have this hiss, then your's may be pulled out as well, or you have a bad valve, causing it to push out the valve and leak out around the valve... Get this fixed, the PCV valve is behind the intake right below the 2 10 pin connectors. My car stoped the shut down hiss as soon as i replaced the valve and placed it back in the block...

Continuing on in this....

If I try to pull vaccum staight from the EGR valve, it doesn't hold anything... i can see the diaphram move and then drop... that is it... Perhaps my EGR has something wrong with it... I dunno.

However... going back into the line I also can't hold any vaccum. I followed this right to the nipple coming out of the intake by checking both ends of all the lines in between. Plugging one end and testing the other for vaccum. All lines are good. I just can'
t hold any vaccum off the back of the intake. There is also a vaccum line coming from the front of the intake that goes down to a canister in front of the engine on the passagger side. This also holds NO vaccum coming from the intake...

Note: on the intake there is three exits i found, the drivers side is the larger source i think, the middle goes to my EGR crap, and the passager side goes to my fuel regulator i think... The fuel regulator seems to have lots of vaccum from what i remember, i am gonna check again tonight. I also have a mustang meeting tonight, so i am gonna see what everyone else car there is doing.

I am very curious to what these all go to, and what is busted. If some one has a stock intake lying around, could they have a look under it, maybe take a picture and post it. It would save me pulling mine off.

Also, does anyone know how the EVP valve or whatever it is that controls the EGR Vaccum works. I have heard that there is a filter on the top if the cover is pulled off the top of it, that can be cleaned... other than that though... what does it do.?
 

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Discussion Starter · #16 ·
Thanks,

What I am doing is hooking the vaccum pump with a gauge to the intake vaccum outlet for the EGR/EVP ect... and it holds no vaccum... this may be normal though...?
I will play around with this stuff again after work... I am beginning to forget what i have and havne't checked.
If the EGR was not holding vaccum, why would i be getting the 44 and 94 codes for my theractor solenoids...? From what i remember these are all hooked to the EGR vaccum somehow... But i am not sure.
I am gonna check it all out again tonight and post later tonight what is happening.
 

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Discussion Starter · #18 ·
hmmmmm

Well, i pulled the vaccum line off the EVP sensor, that contols the EGR, and then started the car up... Well, there was lotz of vaccum at the sensor after all. I guess now that i think about it... Trying to get vaccum from a pump that goes back to the intake, well i am just pulling air backwards through the intake... so i probably never would have vaccum there. So everything is fine there... Checking my EGR, i pulled it off quick, and it sounds like the diaphram is leaking... Crappy deal, i just replaced the thing last fall... Anyone have a recommendation of what to replace it with. I have heard that ford ones are the only way to go... except they cost twice as much... :( Expains code 34...

I am still a little weiry about the 44 and 94 codes... I have had them ever since the air pump was disconnected from the exhaust. Maybe even before that.
Now, i don't even have the smog pump on, the vaccum lines going to the two valves for the smog pump are blocked off. Thats the valves, not the control solenoids. I blocked off the holes in the heads with spark plugs ends with the ceramic busted off.

Anyone else know anything about it...?

Bill... thanks, you've been a great help so far... i have been looking in my Ford EEC-IV manual... it seems to be no help.
 
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