Now you might think that spraying lighter gas approximately a warm engine isnt wise, however the flash /ignition lessening of gas is about 400C correspondingly you obsession a naked blaze or spark to set it off and Ive used this method for many years without incident. pretense your exaggeration through each realizable joint one at a time and you should locate it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to provide a spraying wand and allow a take in hand blast of gas into each area, especially those hard to accomplish when large implements.
I started the car up this morning, it starts occurring and runs at 1750 and within a minute or suitably climbs exceeding 2500.. It is handing out serene though, just pretension cutting edge than it should be. I in addition to checked the throttle screw plate/return screw, carefully turned it out and nothing changed. put it assist to exactly where it was. No vacuum leak sounds and all friends verified. I character good more or less them as I've been in there a bunch of times..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms occurring and is warmed up? oftentimes in engine work many factors may cause the thesame symptom(s)