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Location:
Sydney
Registered:
April 2005
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 motor revs by itself when head light turns on?????
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Sun, 27 November 2005 16:38
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my mates just bought his suzuki vitara carbi 1.6 and we just changed oil, coolant, filters on and after we started the car it ran alright but once we turned the lights on the motor rev to about 1600 rpm and back to 800 and then revs and back again until we turned off the light. The throttle was actually moving when it revs but what is moving the throttle? is there a motor there possibly control the throttle automatically on carby engine? anyone got a vitara service manual by anychance?
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: motor revs by itself when head light turns on?????
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Sun, 27 November 2005 21:09
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This is a typical case of bad earth syndrome! Take the car to Shane's Earth Moving for a quote or repair!
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Location:
Sydney
Registered:
April 2005
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Re: motor revs by itself when head light turns on?????
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Mon, 28 November 2005 02:29
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mind telling me how does it happend?
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Location:
wollongong NSW
Registered:
August 2003
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Re: motor revs by itself when head light turns on?????
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Mon, 28 November 2005 03:05
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the earth is not always maintained and this can create problems, which are easily solved by finding someone that is capable of moving and upgrading the earth around your car.
as suggested contact shane's earth moving service 
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: motor revs by itself when head light turns on?????
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Mon, 28 November 2005 04:59
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| Gwaijaitat wrote on Mon, 28 November 2005 03:38 |
The throttle was actually moving when it revs but what is moving the throttle? is there a motor there possibly control the throttle automatically on carby engine? anyone got a vitara service manual by anychance?
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that sounds weird...
but...
since it is your mates car, and i assume you are nearby.. you could open the bonnet and have a look yourself? faster and easier than asking toyota people about a vitara...
if there is no servo device to move the throttle, then what else could it be?
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Registered:
June 2005
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Re: motor revs by itself when head light turns on?????
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Mon, 28 November 2005 05:40
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geez this forum is getting bad.
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Location:
1st street on the right
Registered:
November 2002
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Location:
Sydney
Registered:
April 2005
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Re: motor revs by itself when head light turns on?????
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Mon, 28 November 2005 12:44
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Just a bit of update. We found that there's a solenoid thingy which was controlling the throttles/carbi? to open and close when the light was on, and its controlled by an vacuum switch. The switch has two wires out of it, no idea what it is connected to atm, but we unpluged it and the weird thing disappeared, still gotta work out whats wrong with those two wires with the headlights. Thanks for all advices people sorry not a toyota. 
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Location:
1st street on the right
Registered:
November 2002
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Re: motor revs by itself when head light turns on?????
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Tue, 29 November 2005 00:07
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As I said it sounds like a idle control valve. Commonly used to up the idle when A/c is turned on. Could be linked throught the ECU to voltage load on the alternator or could be an elec fault somewhere feeding back to it causing it to operate.
Time to call in the sparkie
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