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  #13  
Old 12-18-2011, 05:19 AM
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Re: Another O2 Sensor Question

How is the condition of the plugs and the air filter? You maybe could check the fuel pressure at the rail. I had a similar problem, where changing the fuel filter/regulator solved my abnormal high consumption problem (its now back to the "normal" high consumption).
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  #14  
Old 12-19-2011, 10:49 AM
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Re: Another O2 Sensor Question

Plugs, air filter and all oils were changed. However the fuel filter wasn't and I will look to changing that after the other bits in transit have been replaced.

I haven't really looked at the write up on changing the fuel filter, but I'm going to assume it's not as simple as unbolting it and swapping it out?

Is there a simple process to do this???
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Old 12-19-2011, 10:20 PM
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Re: Another O2 Sensor Question

It is in fact quite simple. But be aware that the fuel system is always under pressure, even with the engine off. You have to remove the fuel pump relay in the PDC and start the engine. It will sputter a bit and dies and your pressure is gone.
The filter itself is mounted with 1 clamp and 1 bolt. You only have to take care with the plastic couplings. I sprayed some oil over them, to make it release easyer. After several years of operation, road dirt will have accumulated a bit in there, making it harder to disconnect. When you spray it out a bit, it becomes easyer.
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  #16  
Old 12-20-2011, 09:46 PM
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Re: Another O2 Sensor Question

Can't thank you enough for the info.
I'm almost tempted to go to the stealership to see what they want for a fuel filter just for laughs.......lol
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