Same story as before; touch the throttle at idle and it cuts down to almost stalling speeds, then pops right back up to rev like normal.
New info: vacuum is reading 18", undid everything from the intake manifold so that I could try and isolate any problems and blocked off all the ports. Same reading. Wiggled every item attached to the intake manifold, no effect.
From a slow roll the power seems to come in and out up to about 2500rpm (like stutters on and off), then smooths out to just being its normal rich state.
I'm going to drive it to the first day of the supra meet today as is (in about 10 mins) but I plan to be up all night working on it if need be. I'd just like to get some idea as to what's going on here.
Any ideas?
New info: vacuum is reading 18", undid everything from the intake manifold so that I could try and isolate any problems and blocked off all the ports. Same reading. Wiggled every item attached to the intake manifold, no effect.
From a slow roll the power seems to come in and out up to about 2500rpm (like stutters on and off), then smooths out to just being its normal rich state.
I'm going to drive it to the first day of the supra meet today as is (in about 10 mins) but I plan to be up all night working on it if need be. I'd just like to get some idea as to what's going on here.
Any ideas?