Rob Posted October 29, 2007 Author Share Posted October 29, 2007 Noh! Mine has nothing like that, just a black rubber hose, connecting to a metal pipe into the head. There's no sensors, wires and empty sockets for the use of. Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 29, 2007 Share Posted October 29, 2007 It's on the right hand side of the cylinder head area, right where the top rad hose goes into it. -Ian Quote Link to comment Share on other sites More sharing options...
Rob Posted October 30, 2007 Author Share Posted October 30, 2007 Ok thanks, I'll have a look, it must be under the plastic cover. Quote Link to comment Share on other sites More sharing options...
Rob Posted February 17, 2008 Author Share Posted February 17, 2008 It's on the right hand side of the cylinder head area, right where the top rad hose goes into it. -Ian Had a look for this and theres nothing there, other than the pipe entering the head. Do you have any pictures? I replaced the gasket between the Y-tube and the intake plenum today, idle now rests 900 instead of 1000, but is still higher than 700, when checked after driving. Quote Link to comment Share on other sites More sharing options...
Dazzi Posted February 17, 2008 Share Posted February 17, 2008 I had this problem for a few weeks. Turned out it was the fuel from esso I now stick with V-Power Quote Link to comment Share on other sites More sharing options...
Rob Posted February 18, 2008 Author Share Posted February 18, 2008 Ok, this frosty morning, left car running on drive to de-ice, idle settled at about 800. By the time I drove into town, sitting at the lights it was idling at 1400. Turn off and on and it's idling at 800. Drive the 20 miles to work along DC and by the time I'm at work the idle is a nadge above 1000. Really can't understand why it jumps to 1400 after moving a mile into town. Only thing I haven't checked yet isthe thermostat and the temp sender as I can't find where that is. Quote Link to comment Share on other sites More sharing options...
Ian C Posted February 18, 2008 Share Posted February 18, 2008 Righto I've knocked two pics up for you -Ian Quote Link to comment Share on other sites More sharing options...
Rob Posted February 18, 2008 Author Share Posted February 18, 2008 Chairs for that. 2nd pic, is that an NA? I'm sure theres no water pipe up there, theres a dizzy there. Quote Link to comment Share on other sites More sharing options...
Rob Posted February 18, 2008 Author Share Posted February 18, 2008 OK, this is a picture of what I have. I've circled a single wired connector, and a little plastic cap on top of the water pump (is it?) Quote Link to comment Share on other sites More sharing options...
Ian C Posted February 18, 2008 Share Posted February 18, 2008 Oh, oops, I didn't know we were on about NA's No, the second pic certainly isn't one, it's my car Quote Link to comment Share on other sites More sharing options...
Ian C Posted February 18, 2008 Share Posted February 18, 2008 OK try this diagram then, you want E3 and E4, bottom right corner, right hand side of cylinder head. Quote Link to comment Share on other sites More sharing options...
Scooter Posted February 18, 2008 Share Posted February 18, 2008 Rob if you want to try a different sensor/sensors i can (hopefully) send one up to you..............i'll have a check later this evening to see if i have them..... Quote Link to comment Share on other sites More sharing options...
Digsy Posted February 18, 2008 Share Posted February 18, 2008 Sticky breather valve? IIRC they plug into the top of the intake side camcover on NAs. MIne is looking pretty gummed up these days. Wait until you can get the high idle on your driveway and then pull the hose off it. If your engine revs dont rise any further with the hose off, then it might be something to do with that. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 18, 2008 Share Posted February 18, 2008 OK try this diagram then, you want E3 and E4, bottom right corner, right hand side of cylinder head. err, LH side actually Quote Link to comment Share on other sites More sharing options...
Rob Posted February 18, 2008 Author Share Posted February 18, 2008 Argghhhhh, where is it????? LH from the front, or from the drivers seat? or RH? Digsy, you mean the little blue plastic thing linking top of the rear intake side into the top of the throttle body? Pretty sure nowt happens when I remove that. I'll try again. Whilst looking tonight on the RH side for the sensor, I noticed the earth plate was disconnected right behind the battery, it's part of the loom that connects to the earth terminal. I'll see if that makes any difference tomorrow, it looked like it connected to the sensor, while I thought I knew where the sensor was. Quote Link to comment Share on other sites More sharing options...
Digsy Posted February 19, 2008 Share Posted February 19, 2008 Digsy, you mean the little blue plastic thing linking top of the rear intake side into the top of the throttle body? Pretty sure nowt happens when I remove that. I'll try again. That's the kiddie. Quote Link to comment Share on other sites More sharing options...
Rob Posted February 19, 2008 Author Share Posted February 19, 2008 Well. just got in to work, idling at 1400 but starting to drop slowly. I pulled the vac hose you spoke of, off the little tube on top of the TB and nothing happened to the revs. I could feel air hissing out of the metal tube, but there was no suction on the pipe. Quote Link to comment Share on other sites More sharing options...
Digsy Posted February 19, 2008 Share Posted February 19, 2008 Well. just got in to work, idling at 1400 but starting to drop slowly. I pulled the vac hose you spoke of, off the little tube on top of the TB and nothing happened to the revs. I could feel air hissing out of the metal tube, but there was no suction on the pipe. I pulled my breather hose off today when I got home. My idle speed went up from about 700 to 1100. There was a very loud hissing noise from the pipe. Although I didn't do it, I know that if I had put my finger over the open end the idle speed would have come back down again. Quote Link to comment Share on other sites More sharing options...
Rob Posted February 19, 2008 Author Share Posted February 19, 2008 Absolutely nothing is being sucked through that pipe, either with the little blue valve or without. Investigation methinks. Quote Link to comment Share on other sites More sharing options...
Digsy Posted February 19, 2008 Share Posted February 19, 2008 Sorry - I should have been more clear. It depends on whether you disconnect the hose at the valve end or the throttle body end. The bit left attached to the throttle body should suck. The bit left attached to the camcover should not. I disconnected my hose where it attaches to the throttle body. What I should have said was that if I had put my finger over the metal pipe, the idle speed whould have come back down again. Quote Link to comment Share on other sites More sharing options...
Ian C Posted February 19, 2008 Share Posted February 19, 2008 err, LH side actually Right hand side of the picture Quote Link to comment Share on other sites More sharing options...
Rob Posted February 19, 2008 Author Share Posted February 19, 2008 I've had a good look down there, still not sure about whats what, or indeed how to reach any sensors. It looks like an undertray off job. Quote Link to comment Share on other sites More sharing options...
Rob Posted February 25, 2008 Author Share Posted February 25, 2008 I pulled my breather hose off today when I got home. My idle speed went up from about 700 to 1100. There was a very loud hissing noise from the pipe. Although I didn't do it, I know that if I had put my finger over the open end the idle speed would have come back down again. Definitely nothing happening with that little pipe. If I pull the vac hose off the little pipe above the TPS the revs rise, but nothing with the little one dead centre of the throttle body top. Could another NA owner also try the same pipe for me please, just to get a broader specturm? The little valve filter thing, eventually leads to a Coil shaped cannister under the manifold, and two elec sensor plugs. What do these do? Quote Link to comment Share on other sites More sharing options...
Digsy Posted February 25, 2008 Share Posted February 25, 2008 Digsy, you mean the little blue plastic thing linking top of the rear intake side into the top of the throttle body? Pretty sure nowt happens when I remove that. I'll try again. I've just re-read back through the last few posts because I've got confused about what is going on with the symptoms when you start pulling off pipes. I now think that the above quote doesn't actually refer to the breather pipe I was talking about, so what you are getting wouldn't match up with what I was expecting to happen when you pulled the pipe off. The part-throttle breather is a short hose that runs from the top of the camcover on the intake side to a stub pipe on the side of the throttle body (pointing towards the rear of the car). The pipe is about 12mm or so in diameter. The PCV valve fits in the camcover with a rubber bung. Is this the hose you have been fiddling with? Quote Link to comment Share on other sites More sharing options...
Rob Posted February 25, 2008 Author Share Posted February 25, 2008 No, I thought you meant the little 5mm pipe. I now understand the pipe you refer to and will try that tonight. Quote Link to comment Share on other sites More sharing options...
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