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The Toyota Service Manual wants the idle up speed to be adjusted to 1250 rpm. I see a diaphragm valve operating this feature on my lift truck. Is this the same as the cold start elevated idle on carbureted cars?
The truck has a 4Y dual fuel engine, now operated on propane.
  • Posted 9 Jul 2019 10:56
  • By Georg
  • joined 7 Mar'14 - 20 messages
  • Ontario, Canada
1998 426FGCU25 Ser No 67740

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Fact of the week
The black box flight recorder was invented by Australian scientist David Warren in the mid-1950s. While initially met with indifference in Australia, his invention gained international recognition, particularly in the UK, and is now a mandatory piece of safety equipment on all commercial aircraft.
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edition #1242 - 7 August 2025
Fact of the week
The black box flight recorder was invented by Australian scientist David Warren in the mid-1950s. While initially met with indifference in Australia, his invention gained international recognition, particularly in the UK, and is now a mandatory piece of safety equipment on all commercial aircraft.