I have a standard 1990 1.8 PB Gti. It currently idles around 1000rpm, this does it when hot or cold. IS this too high, it seems so. The idle screw is wound all the way in, i have also tried another throttle body. When at idle the accelerator cable is loose. I have check for air leaks, and cleaned out the ISV. and all the pipework into it. It has also had a new bung on top of the rocker cover, rocker cover gasket. Maybe this is the correct RPM but it seems too high? Anyway, none of ths has helped, anyone any ideas?? Thanks
probably best to ignore me on this one. I have just tried the thing where you remove the blue temp sender and rev the engine, this seems to have fixed it! I did do it last week but it had no effect. Anyways, i hope you enjoyed reading this, stay tuned for more
if the idle screw is wound in as far as it can go this suggests an air leak somewhere or the settings are not 100% correct. have you been thru this guide yet: http://www.clubgti.com/showthread.php?124949
cheers for that, will work my way through it. Yes, idle screw is all the way in, idle is now between 840 - 900, so maybe something is still afoot?
may be worth changing the oring on the idle screw, and just go over all the vac pipes, hoses seals etc in general lookin for leaks once you're happy check ignition timing and adjust the idle again if need be
