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Failed start low rpm

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Old 06-11-2016, 11:34 PM
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mustang493
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Default Failed start low rpm

i'm experiencing occasional start issues with a p160 useing a v6 ecu. When I initiate the start the gsu shows preheat, the starter engadges but within a few seconds the start fails sighting low rpm as the error. I believe this is the acoustic feedback phase of the start. I thought it may be due to a weak battery and am using 2 cell lipos but if anything it is more likely to start with a weaker battery than a fully charged one.
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Old 06-19-2016, 02:59 AM
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check the starter rubber or alignment for slipping, clean the rubber from oil or fuel with a clean dry cloth, maybe the starter is not driving the shaft with the optimum speed.
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Old 06-19-2016, 04:25 AM
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Thanks for the response morwan. I have found that this probably has been caused by confusing the ECU. most of my engines are wren turbines and when you start a wren you put trim to full then throttle to full then immediately to low throttle. I was doing this with the jet cat and i think this was confusing the ECU. Once i paused for a few seconds at full throttle the start up phase worked without a hitch. so far i've had ten or so successful starts and no problem.
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Old 06-19-2016, 02:19 PM
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Originally Posted by mustang493 View Post
Thanks for the response morwan. I have found that this probably has been caused by confusing the ECU. most of my engines are wren turbines and when you start a wren you put trim to full then throttle to full then immediately to low throttle. I was doing this with the jet cat and i think this was confusing the ECU. Once i paused for a few seconds at full throttle the start up phase worked without a hitch. so far i've had ten or so successful starts and no problem.
Good to know that u got problem solved
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Old 02-09-2017, 10:59 AM
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Well the problem has recurred anyone ever experienced this.
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Old 02-15-2017, 01:00 PM
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I had the same problem until I replaced the rubber O ring on the starter motor, as Morwan suggested.
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Old 02-23-2017, 04:19 AM
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You could also try to redo the Learn R/C - Teach the ECU Your Radio System...
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Old 07-31-2017, 11:21 AM
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Default Accel slow error

Hi everyone I have a kj66 turbine engine and a jetcat v6 ecu. When I spool up my turbine it reaches 30000 rpm and cuts off all the time with accel slow what could cause this problem? I raise all I could raise and still the same problem. Please help .
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