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can coolent level sensor effect fuel econ 

 

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 Post subject: can coolent level sensor effect fuel econ
Posted: Fri Aug 28, 2009 7:51 pm 
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i now it sounds strange but could a faulty coolent level sensor effect fuel economy.ie:give the ecu a dud signal and go into limp mode.

this is on a au (didn't they have something as a safe guard if they ran out of water or something they could still be driven a short distance)?
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 Post subject: Re: can coolent level sensor effect fuel econ
Posted: Fri Aug 28, 2009 8:18 pm 
Getting Side Ways
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Maybe.....yes, that sensor at the back of the head is for when the coolant level drops too far, and gets too hot, then is just cuts spark to the cylinders ( sort of randomly ), but the injectors still work, so as to use fuel to help cool the engine, but only to a point.

 

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 Post subject: Re: can coolent level sensor effect fuel econ
Posted: Sat Aug 29, 2009 12:22 am 
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Mate
Ba had the limp home mode

gassa

 

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 Post subject: Re: can coolent level sensor effect fuel econ
Posted: Sat Aug 29, 2009 12:34 am 
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the coolant level sensor is on the radiator overflow bottle...

the coolant temperature sensor is on the head...

the AUs did have an overheat protection feature, it uses engine temp sensor not the coolant level sensor...

all the coolant level sensor does is activate a warning light on the dash

 

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 Post subject: Re: can coolent level sensor effect fuel econ
Posted: Sun Aug 30, 2009 4:06 pm 
Stock as a Rock
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ok thanks guys for the responses .i just trying to track down cause of REALLY poor fuel economy .im going to do fuel filter.iat sensor and oxy sensor and maybe change injectors...anything else i should do???
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 Post subject: Re: can coolent level sensor effect fuel econ
Posted: Sun Aug 30, 2009 4:36 pm 
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is it an XR6? I saw somewhere they could shut down 2 cylinders if they got too hot :shock:

 

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