Mboosi 10 Posted October 2, 2012 Hello! Tried to use search function but I possibly failed to do proper one, have been battling this for nearly 2 weeks now.. Getting totally clueless on this one:shrug: So I have g60 -92 rado and having some issues with running, especially when its warmed a bit. After starting it tooks about 1-2 minutes amd then it starts smoking blueish/grey smoke from idle, it gets hugely worse by hitting gas! Also it hesitates when giving full throttle at 1000-2000rpm, after that it rews nice except the smoke. Second problem is funny idle, it idles nice when it settles but when getting down from revs it hangs like it would get air or something like that but I did not found any leaks! I dont know if it also makes starting bad when cold, need to crank for a while.. after that it starts with no problem. I have already changed plugs, bluetempsensor, o2sensor, check grounds, battery, cleaned co2pot, isv cleaned and buzzing when ignition on, idle screw o ring changed(old snapped by touching:bonk:) Timing marks checked, plugs were all solid black after 2h running, even compression were nice 8bars.. Could the fuel pressure/fuel injectors be reason or valve stem seals? Any help will be really appreciated to get this wagon moving properly! Quote Share this post Link to post Share on other sites
Topaz2008 0 Posted October 2, 2012 Have you had any of the vacuum hoses off at the back of the throttle body? There are 2 at the back of the body, if you get them the wrong way around it cause the car to smoke. Quote Share this post Link to post Share on other sites
Mboosi 10 Posted October 2, 2012 I forgot to mention I replaced the ecu vacuum hose with new 1m long, it goes to passengers side hose insert on throttle body am I correct? Atleast it made engine running lots better! Quote Share this post Link to post Share on other sites
vw_john 10 Posted October 2, 2012 Passenger side hose insert? I was pretty sure there were two, at the back of the TB, one above each other? can't bring to mind which one goes to the ECU though. Quote Share this post Link to post Share on other sites
Supercharged 2 Posted October 2, 2012 Yeah there are 2... Have you tried your ECU in another car? could be a blown injector driver causing this... Other thing it could be is the charger - is this in good shape? any sign of oil in the pipe work? Quote Share this post Link to post Share on other sites
Mboosi 10 Posted October 3, 2012 Unfortunately only possible ecu switch would be to buy one, if someone got on working one laying around I would be intrested! Is it possible to meter ecu pins with multimeter to check the injector driver working? Ill check charger asap when getting to garage, thou it has been rebuild 20k km ago.. Quote Share this post Link to post Share on other sites
Topaz2008 0 Posted October 3, 2012 For info here is a picture from the Bentley manual showing the ecu piping connected to the throttle body Page186.pdf I do also have 2 spare ECU's which I plan to sell at some point if you are interested. Quote Share this post Link to post Share on other sites
JMC 0 Posted October 3, 2012 When mine started making blue smoke especially when booting it, it was the valve stem seals. Quote Share this post Link to post Share on other sites
Mboosi 10 Posted October 3, 2012 (edited) So it seem ill test oil leak from charger first. If nogo ill change cylinder head since I already got reconditioned waiting, it just takes time to change. If still nogo then I assume its ecu based, hopefully Mr topazz is willing to let go of one! Oh and my vacuum hoses are just like in picture Topazz send, I should have specified it better:bonk: Ill report back after weekend! Edited October 3, 2012 by Mboosi Quote Share this post Link to post Share on other sites
