I need some brick board help. I think this is relatively easy.

Back story:

My 95 turbo wagon, which has always run well showed a check engine light and then a few days later started running very badly. Almost like misfiring. The engine code said oxygen sensor and something about the catalytic converter.

I went to brickboard and read that there are three sensors in the block, running laterally from front to back. I removed the intake manifold and with great difficuly took out the front sensor and the middle sensor. At the time I knew the name for each of these, but I've forgotten. That would help me.

I replaced both. The clip from the middle one was in good condition and I just attached it. Looks like some money had fiddled with the front attachment. There was no clip but a couple connectors added to the wires that fit sort of on the two posts in the new sensor. I figured maybe that would be OK, but I should have replaced the clip, because now one of the wires has detached from the small socket that was jury rigged to the wire.

First question. Would someone be able to tell me how to order the clip. With the sensor in the block it is now inconvenient to take the sensor to the auto parts store to check for a sensor and I am quite sure the clip for the forward sensor is different from the middle one. Thus, they are unique for good reason.

Boy is the area under the intake manifold hard to navigate. So much going on.

Next issue. After I put the manifold back together, I notices a long thin, probably 1/8 rubber hose hanging down almost touching the ground toward near the right front wheel. After some fumbling around and jacking the car up (most likely unnecessarily, I found that the connected end was the top port of the white metal component just to the left of the code reader. I have a photo and if I can figure out how to attach it, it should be easy to identify. The device has two ports with identically sized hoses. The one that is detached is about 3 feet long and its very soft flexible rubber. That is the upper hose. The one that is not detached runs under the intake manifold passed the three block sensors and attaches to something almost impossible to see. I can only tell by feel that it is attache.

So, I need to know what the smaller than a first device is with the two hoses coming out of it, is called and where the upper hose attaches.

The area under the intake manifold has been flooded with oil for years. I've never been able to figure out what is going on. The leak is slight, but its there and there is oil everywhere. I wonder if it could be that the detached hose produces oil for some kind of analysis in the device it attaches to????

Bob Franklin

ps Can't see how to upload a photo?

Sorry, A little change of situation. I have another 940 and I must have had my brain in some other dimension because all I had to do was look at the mate to realize the long hose runs over the valve cover to a "T" at the right side where one leg goes to a fitting on the large Turbo Hose; maybe a 4 inch hose. The other leg runs over to the turbo box. I hadn't considered it would be this easy. I must have disconnected this hose when I removed the intake manifold, but that was weeks ago and I forgot where to put the hose back. I was looking in all the wrong places.

This does not end my question as to whether someone can give me a hint on the proper electrical connector for the Temperature Sensor. I figured out it was the temp sensor as soon as I drove the car and the temp gauge failed to register anything. Thus, I know the wires have to be spliced to a new temp sensor connector.

Back to my oil problem. The area under the intake manifold is flooded with oil. Maybe it has something to do with the turbo, but it has been so long, I can't think that would be correct. I have asked at the local self impressed mechanic and at the dealership. Neither had a clue, but I suspect that is because there is less time and more money in calipers, rotors and pads. You could have a break job done yesterday and both of those level of mechanics will find a way to tell you a complete $1,000 job is and absolute necessity, today.

Aside from that complaint, When the car wouldn't run well, even with the sensors replaced, next his was to change the 4 plugs. At first that didn't seem to make any difference, but after a short run the difference was like like from night to day. The plugs that cam out looked like they had been dipped in black velvet. This was consistent with the engine codes which pointed to a rich mixture nand oxygen sensor problem.

My wife sees smoke coming out of the exhaust when following me.

I wonder if hooking the hose back up to the Turbo will solve that?

Any chat or suggestions is appreciated.

Bob Franklin

Pictures; use imgur.com. It's free. You make a profile, upload the their site, copy the link in the menu for 'forums', and paste that link into your posting here. Presto, your pics show up.

Smoke out exhaust; What color, white or smoky/dark? At idle, hold your hand over the exh outlet; does water vapor collect on your hand?
What is in the exh pipe; is it dark and very sooty?

Really would prefer folks use the brickboard.com image loader available through your brickboard.com accopunt ptofile (click your user name, and you'll see it, follow the on-screen instructions, you may be limited to 640 x 640 pixel images.)

In your message you use the img src = "" expression.

Or, as our Uncle Art B. posts:



Yet I like to encapsulate the image URN/URL in quotes. I'm owld skool html. Maybe that why my other html efforts don't work so well in the modern era.

Hope that helps.

Vacuum Tube Boyeeeeeeeeeeeeeeeeeeeeeeeeeeee


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The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity

I will check the exhaust and report back.