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| uk.rec.cars.maintenance (Car Maintenance) (uk.rec.cars.maintenance) |
| Tags: air, control, idle, valve |
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On Fri, 26 Jun 2009 00:14:42 +0100, Tunku wrote:
Should an engine be able to run with this electrically disconnected, but still in place? It depends on how open it sits, almost all the ones I've seen would stall. |
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On Fri, 26 Jun 2009 07:34:03 +0100, "Duncan Wood"
wrote: On Fri, 26 Jun 2009 00:14:42 +0100, Tunku wrote: Should an engine be able to run with this electrically disconnected, but still in place? It depends on how open it sits, almost all the ones I've seen would stall. Depends on if the system has a base idle setting device or if the idle air valve is only source of air. Base idle setting may be an air bleed screw or the good old hold the throttle open a bit on an adjustable stop. If system has base idle it will be setup, with the idle air valve unplugged, to an engine speed slighly short of the target rpm. Then the ECU uses the idle air valve to bring engine speed up to target. -- Peter Hill Spamtrap reply domain as per NNTP-Posting-Host in header Can of worms - what every fisherman wants. Can of worms - what every PC owner gets! |
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On Fri, 26 Jun 2009 07:46:15 +0100, Peter Hill
wrote: On Fri, 26 Jun 2009 07:34:03 +0100, "Duncan Wood" wrote: On Fri, 26 Jun 2009 00:14:42 +0100, Tunku wrote: Should an engine be able to run with this electrically disconnected, but still in place? It depends on how open it sits, almost all the ones I've seen would stall. Depends on if the system has a base idle setting device or if the idle air valve is only source of air. Base idle setting may be an air bleed screw or the good old hold the throttle open a bit on an adjustable stop. If system has base idle it will be setup, with the idle air valve unplugged, to an engine speed slighly short of the target rpm. Then the ECU uses the idle air valve to bring engine speed up to target. Which means any large electrical load stalls it. |
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Tunku wrote:
Should an engine be able to run with this electrically disconnected, but still in place It can still run but may not idle, so you might need some throttle to start it and keep it going, otherwise it will run alright. |
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In article , Tunku says...
Should an engine be able to run with this electrically disconnected, but still in place? Yes although it may not idle, depending on the engine management system. It's a common fault on my wife's FTO but on hers, they do idle once hot but will not increase speed at idle to cope with power steering demands. -- Conor I only please one person per day. Today is not your day. Tomorrow isn't looking good either. - Scott Adams |
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