Oil around intake valve - Can't check CEL

[x1i111i1x]

I have a 1995 Talon AWD tsi. Lately it has been stalling at idle, and a belt squeals at first startup (then goes away) but I thought that was b/c of cold weather. My CEL (Check Engine Light) just came on last night.

I've searched for a while on how to find the engine code from the CEL, but when I try the 3 time ON-OFF method, that doesn't work.

I popped the hood and looked around. I found some oil coming from the bottom of the intake valve seal. How serious is this? Any suggestions on where I should start, what could be the problem. I have a few ideas, but I'm a newbie to engine work. Any help is appreciated. Thanks, and...

God bless,
Tim B.

 

[luv2rallye]

The 2g's use OBD2 for CEL codes. Take it to Checker, Autozone, etc and they will get the CEL error code for free. For belt sqweel at 1 st startup check all accessory belts for tightness and crankshaft pulley for separation.

 

[x1i111i1x]

Thanks luv2rallye

I took the car to Autozone last night and got the folllowing codes:

P1400
P0125

They didn't give me too much info about either, but did suggest that it could be a faulty coolant sensor so I'm gonna replace that tonight. I'm doing a search now to look up these codes for more info.

As far as the oil coming from the air intake area, I'm not sure when that started, or what could be the cause.

I'll keep you updated.

 

[oldman]

Thanks luv2rallye

I took the car to Autozone last night and got the folllowing codes:

P1400
P0125

They didn't give me too much info about either, but did suggest that it could be a faulty coolant sensor so I'm gonna replace that tonight. I'm doing a search now to look up these codes for more info.

As far as the oil coming from the air intake area, I'm not sure when that started, or what could be the cause.

I'll keep you updated.

In your original post you said oil at intake valve seal, can you elaborate? Are you talking about the intake pipe?

 

[luv2rallye]

P0125 is front O2 sensor. P1400 is MDP sensor.

 

[1i111i1]

In your original post you said oil at intake valve seal, can you elaborate? Are you talking about the intake pipe?

oldman, I had to take the intake hose off to change the coolant sensor. The oil is inside the intake itself (after the air leaves the main hose and before it divides into four to the injectors). I've never seen this before and am quite scared by it. I hear ticking so I probably need a valve job, so is it possible for oil to go backwards or even come from the the turbo? I obviously have no clue.

As for the codes, thanks luv2rallye, I'm gonna get on those two sensors as well seeing that changing the coolant sensor as suggested by the guy at autozone didn't help. I actually got a fuel filter (to rule that out for the stalling) and got them to read the codes again, and now I have a P0115 in addition to the first two. Anyway, I'm gonna get the other two sensors tonight and jam those in there.

Thanks again, all. You guys have a wealth of knowledge that I covet.

 

[Raph]

oldman, I had to take the intake hose off to change the coolant sensor. The oil is inside the intake itself (after the air leaves the main hose and before it divides into four to the injectors). I've never seen this before and am quite scared by it. I hear ticking so I probably need a valve job, so is it possible for oil to go backwards or even come from the the turbo? I obviously have no clue.

As for the codes, thanks luv2rallye, I'm gonna get on those two sensors as well seeing that changing the coolant sensor as suggested by the guy at autozone didn't help. I actually got a fuel filter (to rule that out for the stalling) and got them to read the codes again, and now I have a P0115 in addition to the first two. Anyway, I'm gonna get the other two sensors tonight and jam those in there.

Thanks again, all. You guys have a wealth of knowledge that I covet.

thats normal...the oil in your intake is from the crankcase ventilation.. very normal..doesnt hurt to clean it once in a while tho

 

[oldman]

The oil you speak of could be blow by from the PCV valve.

edit: forgot about the EGR valve.

 

[1i111i1]

The oil you speak of could be blow by from the PCV valve.

edit: forgot about the EGR valve.

Do you mean it could be coming from either valve? Or were you suggesting the EGR (Exhaust Gas Return?) as a problem for the bad idle/stalling?

 

[oldman]

Do you mean it could be coming from either valve? Or were you suggesting the EGR (Exhaust Gas Return?) as a problem for the bad idle/stalling?

I mean all the oil/gunk you see could be coming from both valves. So the sensors didn't solve your other issue?

 

[1i111i1]

OKay, I see what you're saying about the valves.
I didn't have a chance to do the sensors yet. I work until from 9 to 6, and it's dark outside when I go home this time of year. I don't have a garage, so I'm limited to working on the car on Saturdays. I didn't even get the MDP sensor yet. Is this the same as the MAP sensor? I don't think it is, but I couldn't find MDP on autozone or advance online, and all eBay has is mass air flow sensor. Thanks again for all the help.

 

[1i111i1]

Okay... so my car is acting like crap still.

So far I have replaced the coolant sensor, the fron O2 sensor and MDP sensor (per luv2ralley), and the ISC motor (twice). When I changed the ISC motor the first time, it made the car have a high steady idle ata bout 3200rpm. I took it back out and compared it the the original one, and it was slightly smaller... so I got anotheer ISC. The newer one was smaller too so I took the plunger from the old one and put it in the new one with the good ohm readings. I'm still at a really high idle. I turn the BISS screw all the way down and that just keeps it idling at 3000rpm. Now my clutch is going up. I guess from constantly taking off at high rpms?

I did see one post that said a car had a similar problem (even wouldn't start when it was cold in the morning like mine) and tehy said they replaced the FIAV and their problem was solved. Since the FIAV is controlled by the coolant sensor, could it still be the coolant sensor? Maybe the wiring from the sensor to the ECU? How can I tell if the ECU is getting a good reading from the sensor? I'm totally lost now and don't know what else to replace. I have an extra intake, should I replace the whole intake? Thanks again for any help from the wisemen.

God bless,
Tim B.

 

[blueberry_dsm]

thats normal for a small amount of oil residue to get in due to the pcv system. however, if there is a larger amount, then i suggest u invest your money in an oil catch can. it catches the oil, and prevents it from getting into the intake. however, occasionally, u do have to empty the can so i doesnt overfill. jus my $0.02.

shane