Guest gtr1 Posted August 14, 2006 Share Posted August 14, 2006 Hia What can it be - auto transmission TT, when staying on P revs coming up to about 1200-1300 every 1-2 minutes for a second and then drops back... 70K miles on the clock, serviced regulary something wrong with the engine? no smoke etc Link to comment Share on other sites More sharing options...
Lewis Posted August 14, 2006 Share Posted August 14, 2006 aircon Link to comment Share on other sites More sharing options...
Guest gtr1 Posted August 14, 2006 Share Posted August 14, 2006 aircon is off Link to comment Share on other sites More sharing options...
supra-lover Posted August 14, 2006 Share Posted August 14, 2006 aircon is off I've had this on my n/a as it goes????? i put it down to shit petrol Link to comment Share on other sites More sharing options...
Supradan Posted August 14, 2006 Share Posted August 14, 2006 Could be the idler valve is playing up,mine used to stick at 2000rpm until i stripped and cleaned it. Link to comment Share on other sites More sharing options...
jazz1 Posted August 14, 2006 Share Posted August 14, 2006 Could be the idler valve is playing up,mine used to stick at 2000rpm until i stripped and cleaned it. how do you do that? Link to comment Share on other sites More sharing options...
Homer Posted August 14, 2006 Share Posted August 14, 2006 Hia What can it be - auto transmission TT, when staying on P revs coming up to about 1200-1300 every 1-2 minutes for a second and then drops back... 70K miles on the clock, serviced regulary something wrong with the engine? no smoke etc As already mentioned thats normally a sign of a faulty or sticky idle control valve. They're very expensive to replace so remove and give it a good clean. Also reset the ECU (battery terminal off for a few seconds or remove ECU fuse). You'll need to drive for around 15 miles for the ECU to relearn (keep off boost for a few miles), but should be spot on after that. Link to comment Share on other sites More sharing options...
jazz1 Posted August 14, 2006 Share Posted August 14, 2006 how do you clean it? Link to comment Share on other sites More sharing options...
Supradan Posted August 14, 2006 Share Posted August 14, 2006 Just remove the water pipes and unbolt from engine then blast it through with some wd40 should work ok then,its controlled by the ecu to open when higher revs are required when cold or air con comes on etc.If you do a search you may find some pics of where this is. Link to comment Share on other sites More sharing options...
Steve Posted August 14, 2006 Share Posted August 14, 2006 Pic here Link to comment Share on other sites More sharing options...
jazz1 Posted August 14, 2006 Share Posted August 14, 2006 cheers so i will have to take that off and give it a clean Link to comment Share on other sites More sharing options...
Robbo Posted August 15, 2006 Share Posted August 15, 2006 My N/A does exactly the same Link to comment Share on other sites More sharing options...
TT-DEK Posted August 15, 2006 Share Posted August 15, 2006 Hmm. Looks like i have the same problem. Do you un bolt the whole thing from the throttle body??. If yes, is there a gasket to look out for? Link to comment Share on other sites More sharing options...
jazz1 Posted August 15, 2006 Share Posted August 15, 2006 i just tryed doing it and bloody hell i cant remove the screw from the bottom of the idle valve? and the pipe clips are hard to take off, if its going to be hard im just gona get it serviced from turbo fit and ask them to clean up the engine:) Link to comment Share on other sites More sharing options...
TT-DEK Posted August 15, 2006 Share Posted August 15, 2006 HI Jazz. I thought it was just the 2 bolts holding it to the T/Body? and hoses? I looked at that star screw and thought Fook that?. Link to comment Share on other sites More sharing options...
jazz1 Posted August 15, 2006 Share Posted August 15, 2006 thats what i looked at the star key ones easy the others hard to remove Link to comment Share on other sites More sharing options...
TT-DEK Posted August 15, 2006 Share Posted August 15, 2006 I don,t think you touch them?, i think its the 2 13mm bolts and hoses?. Need to ask someone for help again. My idles at 1200/1300 then drops back 2 normal after about 10 mins, but makes my gear changes a bit rough?. Link to comment Share on other sites More sharing options...
jazz1 Posted August 15, 2006 Share Posted August 15, 2006 same me car idles there at first then drops Link to comment Share on other sites More sharing options...
Robbo Posted August 15, 2006 Share Posted August 15, 2006 Simple, it's the fuel pump cutting in then switching off, no need to worry about it. That's what Toyota have told me today. Link to comment Share on other sites More sharing options...
Homer Posted August 15, 2006 Share Posted August 15, 2006 Simple, it's the fuel pump cutting in then switching off, no need to worry about it. That's what Toyota have told me today. oh. my. god. Link to comment Share on other sites More sharing options...
Supradan Posted August 15, 2006 Share Posted August 15, 2006 Simple, it's the fuel pump cutting in then switching off, no need to worry about it. That's what Toyota have told me today. Toyota mechanics to the rescue!!! lol Link to comment Share on other sites More sharing options...
jazz1 Posted August 15, 2006 Share Posted August 15, 2006 cheers Link to comment Share on other sites More sharing options...
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