APT 195 Report post Posted December 5, 2009 Hey guys Been driving my e30 all today and am really starting to get sick of the hunting idle , its at 750 then hunts to maybe 500rpm, ive cleaned both ICV and AFM changed the rubber intake boot for a brand new one. Now i just think it could be the 'other vaccum' hoses. Which ones should i check or are most common to crack? as i dont have a clue where to start. Thanks Andrew Quote Share this post Link to post Share on other sites
antil33t 90 Report post Posted December 5, 2009 Is your lambada (exaust one) sensor plugged in? mine did some stupid idley crap when it wasn't. Quote Share this post Link to post Share on other sites
QuickSilver 0 Report post Posted December 5, 2009 Start with the hose cling from the top of the rocker cover, they are a common cause for vacuum leaks. All five million of them all break at some point. There is a spray you can buy, ember I think it is, spray it on your hoses, the leak will suck it in and change the tone of the engine, pin pointing where the leak is. Ray (hellbm) told me this many years ago, never actually tested it out though. Good luck. Also, not all cars came with a lambda/oxygen sensor. Check if you even have one first. Quote Share this post Link to post Share on other sites
APT 195 Report post Posted December 6, 2009 Thanks man trying to find it now aye so many different hoses. on a side note, my camshaft is a little bit worn could the irregular idling be causing this ? Quote Share this post Link to post Share on other sites
QuickSilver 0 Report post Posted December 8, 2009 A worn cam can affect idle yes. I would work your way down to that. Rule out the things you can do yourself first. Quote Share this post Link to post Share on other sites
APT 195 Report post Posted December 8, 2009 Was told it was a 'Bigish' Job by Glenn maybe i should just m50 it lol. Quote Share this post Link to post Share on other sites
323e30 0 Report post Posted December 8, 2009 dont think its the cam because the issue is new and the worn cam has been there in the time it was ideling ok and ideling irregularly Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted December 8, 2009 Was told it was a 'Bigish' Job by Glenn maybe i should just m50 it lol. Did you try adjusting the tappets yourself Andrew ? or did you take the rocker cover off to check the camshaft ? If you did, you may have the adjustment wrong or you have disturbed something. When I looked at it for you the other day the idle seemed to be fine. And yes I did say it was a biggish job if the camshaft needed replacing, but it needs to be checked first. It may not be worn. Quote Share this post Link to post Share on other sites
bravo 35 Report post Posted December 8, 2009 I think Quicksilver means Ether ("Engine Start"). (carburettor cleaner or propane recommended on other websites too.) Could be anywhere - even your oil cap may not be sealing or your tappet cover gasket may be leaking. If you can't see/hear the leak ether may be the go. Quote Share this post Link to post Share on other sites
QuickSilver 0 Report post Posted December 8, 2009 LOL yes ether was what I meant WTF was I on when I was writing that! Quote Share this post Link to post Share on other sites
