TRY THIS: Throttle Calibration for EFI engine.. It works!
Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
I did this on Monday and got a little better throttle response. Before I did the process, I set my Gryphon back to stock. I have now been running my custom 87 perf tune and have a whole lot better throttle response. 
The only bad thing I'm noticing though is my mileage, according to the Gryphon, has gone down bigtime.
Before, I was getting 15 with my 87 perf tune and now I can't get it above 13-13.5 in either stock mode or with the tune. Since its winter, I let my truck warm up for a few minutes before I drive it so my average on the Gryphon goes down to like 8 but I can't get it to reach my normal numbers, and I don't have a lead foot. I will have to check my mileage by hand when I need to fill up but so far its not looking good.
The only bad thing I'm noticing though is my mileage, according to the Gryphon, has gone down bigtime.
Before, I was getting 15 with my 87 perf tune and now I can't get it above 13-13.5 in either stock mode or with the tune. Since its winter, I let my truck warm up for a few minutes before I drive it so my average on the Gryphon goes down to like 8 but I can't get it to reach my normal numbers, and I don't have a lead foot. I will have to check my mileage by hand when I need to fill up but so far its not looking good.
The reason you have better throttle response is you changed tunes, and your truck has to relearn the adaptive strategy.
Senior Member
Joined: Jan 2010
Posts: 1,228
Likes: 0
From: Brecksville, Ohio
My mileage is still way worse than before I did this stupid "trick". Hopefully leaving my battery disconnected for a while will get rid of that and I can start fresh again.
Junior Member
Joined: Jul 2007
Posts: 4
Likes: 0
From: South Carolina
Throttle Cal with Power-adjustable Pedals
Checked pedal interference with firewall first - it was just bottoming out on the firewall. Used the switch to power it up a little - no more interference. Pretty sure there was a difference on throttle response as mine was pretty sluggish before. I've been having the failsafe mode problem and still have the check engine light locked in. I'll probably repeat this after going to the dealer in a couple days.
Great guidance and the price is right!
'06 SCrew 5.4L
Great guidance and the price is right!
'06 SCrew 5.4L
Member
Joined: Nov 2006
Posts: 26
Likes: 0
From: Fowlerville, MI
Seemed to make a really large difference in our '06 Fusion. I've always hated the car due to lack of throttle response and sluggish and sometimes harsh shifting. After this it drives like it actually has a throttle cable. It shifts so much better. No more leaning forward and waiting for it to go.
And no, none of my sensors are out of wack. I checked it with a scan tool myself when I worked at an auto shop a few months back.
And no, none of my sensors are out of wack. I checked it with a scan tool myself when I worked at an auto shop a few months back.
Junior Member
Joined: Feb 2019
Posts: 1
Likes: 0
Sensor
The Diamondbird Mod
Not sure if anyone has seen the posts by DRE23 within the "Throttle response 2009+" thread. Member DRE23 posted an interesting method to recalibrate the throttle on EFI engines, Apparently this method has been posted on other forums with great success. I was skeptical at first so I tried it on my Tacoma work truck and to my surprise, It actually made a difference.. So this morning I tried this method on my 2010 FX2 and no BS, It made a big difference in my throttle response, The front end of the truck actually raises up and the tires let loose when i punch the gas pedal. I did some research on other forums about this and the common consensus is that this resets the factory throttle setting and can be put back to factory by disconnecting the battery if need be.
Does anyone know how and why this works and how the heck someone figured this out? It's pretty cool and FREE!
TRY IT!
Throttle Calibration
Throttle calibration can substantially improve throttle responsiveness over "factory standard." Many people notice what appears to be sluggish throttle response or a "dead area" at initial accelerator depression. Throttle calibration can take care of these.
1) turn the key in the ON position (don't start the engine)
2) press the gas pedal down slowly all the way down
3) let go of the gas pedal fast so it come back up
4) turn key into the OFF position
repeat steps 1-4 two more times then start engine.
Most drivers notice an immediate change in throttle response, but depending on your driving style, you may need to repeat this procedure periodically due to the computer's adaptive programming. You likely need to repeat this procedure any time the battery is disconnected.
Thanks to DRE23 & Diamondbird for the info!
Not sure if anyone has seen the posts by DRE23 within the "Throttle response 2009+" thread. Member DRE23 posted an interesting method to recalibrate the throttle on EFI engines, Apparently this method has been posted on other forums with great success. I was skeptical at first so I tried it on my Tacoma work truck and to my surprise, It actually made a difference.. So this morning I tried this method on my 2010 FX2 and no BS, It made a big difference in my throttle response, The front end of the truck actually raises up and the tires let loose when i punch the gas pedal. I did some research on other forums about this and the common consensus is that this resets the factory throttle setting and can be put back to factory by disconnecting the battery if need be.
Does anyone know how and why this works and how the heck someone figured this out? It's pretty cool and FREE!
TRY IT!
Throttle Calibration
Throttle calibration can substantially improve throttle responsiveness over "factory standard." Many people notice what appears to be sluggish throttle response or a "dead area" at initial accelerator depression. Throttle calibration can take care of these.
1) turn the key in the ON position (don't start the engine)
2) press the gas pedal down slowly all the way down
3) let go of the gas pedal fast so it come back up
4) turn key into the OFF position
repeat steps 1-4 two more times then start engine.
Most drivers notice an immediate change in throttle response, but depending on your driving style, you may need to repeat this procedure periodically due to the computer's adaptive programming. You likely need to repeat this procedure any time the battery is disconnected.
Thanks to DRE23 & Diamondbird for the info!