Quote:
Originally Posted by DRACO A5OG
Does it hunt at a stop. If it does, next time she hunts, leave her on, open the lid and with a screwdriver tap on the ICV pictured above in red, If it clears up, remove and clean then check the OHMs on it per Bentley manual.
But what concerns me is that she stalls, which tells me she has a massive vacuum leak.
Try the Cigar Smoke Test ( any cigarette for that matter ).
AT a FLAPS, find a vacuum hose the same ID and about 2 feet long ( sorry convert to metric ) as one of the thinner hoses, connect tester hose, blow smoke into the hose and check for smoke. Crude but effective.
Jim
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Could pull oil cap off and see if idle changes at all too couldn't he? If I recall, when you pull the oil fill cap off and the idle stays the same you have a vacuum leak. It won't tell you where the leak is but it will tell you if you have a leak or not.
No power seems strange but someone mentioned the reference sensor and possibly speed sensor as potential culprits above. I don't think you'd have a intermittent failure of those but I suppose anything is possible.
Dumping fuel would point to a CHT sensor to me. It will idle really rough and finally die if you try to throttle up. I believe you can jumper the CHT to bypass it and see if it is causing the fuel loading.