LML Change fuel filter?

[moneypitt]

I am wondering what all triggers the change fuel filter warning besides the WIF sensor, this last cycle was 800 miles and the one before that was about 8,000. It was changed about three weeks ago and just popped back up this morning, I checked and it has not thrown any codes.

 

[FC5452]

That sensor right there, it’s run off of vacuum, as the filter becomes restricted or sucked dry it trips the change fuel filter message.


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[moneypitt]

Ok thanks. I reset it and will keep an eye on it and see if it comes back.

 

[kiwilml]

If your injection pump doesn't hold rail pressure it will say that.. At least my lml was like that..

 

[AZlml]

Can you disable the message through efi if you've removed your factory filter head?

 

[FC5452]

Can you disable the message through efi if you've removed your factory filter head?

Yes you tuner can tune it out.


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[FC5452]

If your injection pump doesn't hold rail pressure it will say that.. At least my lml was like that..

Yes when the pump does not hold desired for 3s+ a P0087 (low) pressure code is set with the change fuel filter message.


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[moneypitt]

If your injection pump doesn't hold rail pressure it will say that.. At least my lml was like that..

My LMM does it as well on the max effort tune. But it sets a code and there are non on my LML.

 

[kiwilml]

Yeah that's how mine did.. No code but the change filter message would come on..

 

[NC-smokinlmm]

Tuner can cut off the cell. Pump might be weak or you got bad fuel...