LOL - the brake cleaner I'm using is the old-fashioned "kills everything and more" stuff from CRC. I once tried the non-chlorinated brake cleaner and discovered that it cleans nothing.
I checked all the rubber intake boots closely and don't see anything. I've verified that the O2 sensor and DPR are functioning - I've set specs on this car so many times that I can almost do it in my sleep. Maybe that's the problem - I've been working in my sleep again... This car was parked for 3 years so anything is possible - haven't changed the fuel filter yet but will make this my next priority. When I got the car started before I changed the T-belt, it revved OK (or so I vaguely remember) so I didn't think that was a problem. However in retrospect, I have the damn filter so I mind as well "do it". I wonder if I should use my propane torch to "loosen" the fittings <G>. I haven't doused the fuel distributor plate with carb cleaner - it doesn't look nearly as bad as the one on my racecar BUT again, anything is possible. Then I'll start playing with the engine electronics. When I start the car cold, it fires right up and seems to rev freely but then it begins to stumble at idle and almost die. Once it gets fully warm, it idles fine but doesn't want to rev off idle. Thanks Ricky & Holland for your advice - keep your fingers crossed that I figure it out before going to the nuthouse. Matthew ----- Original Message ---- From: Rick <[email protected]> To: Matthew Yip <[email protected]>; [email protected] Sent: Monday, December 25, 2006 11:55:36 PM Subject: Re: [a2-16v-list] Mis-fire from idle... Dont be like me once, and used non caustic (non-flammable) brake cleaner! =) I'm sure you've checked the fuel dizzy boot, underneath, for cracks in the accordian section? Also sounds like the ign. isnt adjusting on throttle tip-in.. have you verified ignition timing functionality on rev increase? Fuel filter? Sticky fuel dizzy plate? Ricky in Virginia ----- Original Message ----- From: "Matthew Yip" <[email protected]> To: <[email protected]> Sent: Monday, December 25, 2006 11:41 PM Subject: [a2-16v-list] Mis-fire from idle... > I'm now officially frustrated and confused - I've been working on getting > an '89 GTi 16v back in fighting shape for use as my commuter/autocrosser > since late August. Yeah, I'm slow - sue me - between club racing, Grand > Am Cup and Enduro races, I've been a wee-bit busy and working in a hot > and steamy (or now ice-cold) shop wasn't extremely enticing. > > In any case, the symptoms are that the car stumbles significantly off > idle. However, once the rpms hit about 2000, it revs freely "like it > should". The car has fresh injector seals, plugs, cap & rotor as well as > a new timing belt. I've checked the cam and ignition timing and it's > spot-on. I've also done the old "spray all the possible vacuum leak areas > with brake clean" to check for leaks to no avail. Any thoughts or > suggestions? Coolant temp sensor? > > I had the Rabbit Truckette parked next to the GTi over the summer while I > had the injection pump rebuilt - maybe it hexed the GTi so that I wouldn't > sell the Truckette in Spring... > > I'd keep banging my head against the wall but the wall is starting to > crumble... > > Thanks all!!!! > Matthew > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > _______________________________________________ > a2-16v-list mailing list > [email protected] > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > For list archives, see listinfo link above. > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
