SL55 AMG fuel pump = No more Lean issues! :)

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Jun 9, 2013 | 03:01 AM

#21 (permalink)

Billy22Bob

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Joined: May 2012

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Re: SL55 AMG fuel pump = No more Lean issues! :)

Quote:

Originally Posted by 32krazy!

tunaglove edumacate me! i have a dashdaq and zt-2 setup for datalogging. how do i log the fuel trims and what shuld i be looking for?

bump..... and

Quote:

Originally Posted by tunaglove

Clear your long term fuel trims and run it again!

double bump....

how do you clear them?

Last edited by Billy22Bob; Jun 9, 2013 at 03:03 AM.

Jun 9, 2013 | 08:59 AM

#22 (permalink)

grip grip

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Joined: Mar 2011

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From: TN

Re: SL55 AMG fuel pump = No more Lean issues! :)

Quote:

Originally Posted by Billy22Bob

bump..... and

double bump....

how do you clear them?

Logging fuel trims with the Dashdaq is as simple as selecting the correct PID's (STFT and LTFT). As for clearing the LTFT's, disconnect the battery for a few minutes and the data will be cleared.

Jun 9, 2013 | 02:43 PM

#23 (permalink)

Billy22Bob

Senior Member

Joined: May 2012

Posts: 1,166

Likes: 6

Re: SL55 AMG fuel pump = No more Lean issues! :)

okay - so for those of us without a dashdaq....if the Dashdaq is picking them up they must be available through the OBDII>CANBUS interface.
How long does it take to re-establish the LTFT's?
If disconnecting the battery for a few mniutes clears them - you'd have to be mindful of this (and not to mention the TCU adaptive log) every time you disconnect your negative to do some electrical work.