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hunting at idle when hot

Have a TCM FCG25-31 that hunts at idle after 1/2 hr. run time. Had exhaust pipe and muffler replaced, and new LPG vaporizer installed. Runs good when first turned on, but hunts at idle when hot. Coolant level in rad is right up. S/N is A47F00393. I suspect the MAP sensor but don't know how to confirm. Any help would be appreciated.
  • Posted 25 Oct 2018 23:44
  • By ramon_m
  • joined 30 May'14 - 42 messages
  • Ontario, Canada
Perseverence is a virtue.
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According to studies published in the English Journal of Medicine, the impact of daylight savings is revealed by a 24% increase in heart attacks on the Monday following the spring shift forward. When clocks move back in autumn, heart attacks drop by about 21%, suggesting that loss of sleep is an important driver.