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New Torque Converter causing high fuel consumption 

 

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 Post subject: New Torque Converter causing high fuel consumption
Posted: Sat May 08, 2010 5:20 pm 
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Hey guys,

I installed a new TC (stock stall) earlier this week, and since the install, Fuel consunption has risen.

before replacing the TC my ecconomy was around 16.2L/100km but is now sitting at 18.3L/100km

the tc has improved the driveability of the car, but chewing that much fuel while driving conservatively worries me.

would the PCM restet have done this, or am i looking at other problems here?

Car is BA XL ute
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Sat May 08, 2010 8:01 pm 
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It is still bad at 16.2/100km. what is it, gas or V8?

 

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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Sat May 08, 2010 8:09 pm 
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Slick wrote:
It is still bad at 16.2/100km. what is it, gas or V8?


It's an I6 Petrol. I was starting the troubleshooting due to the high fuel consumption at 16.2L/100

i thought the TC was at fault (it has improved performance alot) but it may well be the fresh oil flowing round the box thats keeping it together.
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Sat May 08, 2010 8:51 pm 
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Mon May 10, 2010 10:15 pm 
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any other idea's guys?
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Mon May 10, 2010 10:20 pm 
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O2 sensor?
blocked cat?
Plugs/leads?

 

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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Mon May 10, 2010 11:20 pm 
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dc_todd wrote:
O2 sensor?
blocked cat?
Plugs/leads?


I will give the O2 sensor and plugs a check tomorrow.
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Tue May 11, 2010 2:44 am 
Getting Side Ways
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Only way to pinpoint this is a more detail & recollection, like how did it drive before changing the Torque converter.

 

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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Tue May 11, 2010 12:49 pm 
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Image

this is the O2 sensor. looks a bit rooted.
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Tue May 11, 2010 12:55 pm 
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lol it appears so
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Tue May 11, 2010 1:20 pm 
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had a look at the plugs and they look fine. off to go get a o2 sensor.
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Tue May 11, 2010 9:48 pm 
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O2 sensor is in, and has decreased fuel consumption to 14.1L/100. i still dont know what it "should be achieving. the 14.1 was driving like a grampa aswell.
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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Tue May 11, 2010 11:31 pm 
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okocimski wrote:
O2 sensor is in, and has decreased fuel consumption to 14.1L/100. i still dont know what it "should be achieving. the 14.1 was driving like a grampa aswell.


It'll take 100km for the trip metre to average out how much it uses. fill the ute up then drive for at least 50k's in the country, should read 10-10.9L/100km. plus you've reset the puter as well, basically it's relearning.

 

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 Post subject: Re: New Torque Converter causing high fuel consumption
Posted: Wed May 12, 2010 9:24 am 
Getting Side Ways
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yep i did a major service on my newly aquired (and very thirsty) AU VCT, and it took a good 200km round highway trip to reach the good ecnomy im getting now
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