Adaptive Computer
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Senior Member
Joined: Jul 1999
Posts: 466
Likes: 0
From: Milwaukee, Wisconsin
Adaptive Computer
This is a great board. Lots of good stuff, but one thing I have read much about is the adaptive computer in these trucks. How 'bout some light on the subject.
How long does it take to adapt.
Does it keep adapting or stop.
What types of things are modified in the process (ie, shift point, spark advance, ???)
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99, XL, SC, SB, auto, 4.6L, 255x70R16, 3.55LS, 2wd, Med Tor, Dk Grph, Raider LoRider Tonneau, Valley class III hitch, bed mat.
More to come!
How long does it take to adapt.
Does it keep adapting or stop.
What types of things are modified in the process (ie, shift point, spark advance, ???)
------------------
99, XL, SC, SB, auto, 4.6L, 255x70R16, 3.55LS, 2wd, Med Tor, Dk Grph, Raider LoRider Tonneau, Valley class III hitch, bed mat.
More to come!
Senior Member
Joined: Dec 1969
Posts: 996
Likes: 1
From: TUCSON,AZ,USA
Welcome to the site. You will find many well informed people here that are willing to share with you.
The way I understand it the computer learns how you dirve and it may take a few days to a couple of weeks. I guess if you want the most performance from your engine drive it harder. If you disconnect the battery for some reason the computer starts the learning curve all over again.
Those that have added a Superchips have commented that after a couple of weeks the most improvement is evident. On mine I pulled the chip and felt the loss right away. I put the chip back in as soon as I fixed my other problem.
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97 F-150, 2WD, Reg Cab,Flareside,Dk Toreador Red, Windsor 4.6, Magnecor 8.5mm wires, Bosch Plat +4s, 3.55 LS, EGR Bug Deflector, ******* Bed Cover, Bed Liner, XL Full Length Running Boards, Air Aid Kit, Gibson Single Out Cat Back, Superchips, TransGo Shift Kit, Hellwig Rear Sway Bar, Hellwig 2500# Overload Springs
The way I understand it the computer learns how you dirve and it may take a few days to a couple of weeks. I guess if you want the most performance from your engine drive it harder. If you disconnect the battery for some reason the computer starts the learning curve all over again.
Those that have added a Superchips have commented that after a couple of weeks the most improvement is evident. On mine I pulled the chip and felt the loss right away. I put the chip back in as soon as I fixed my other problem.
------------------
97 F-150, 2WD, Reg Cab,Flareside,Dk Toreador Red, Windsor 4.6, Magnecor 8.5mm wires, Bosch Plat +4s, 3.55 LS, EGR Bug Deflector, ******* Bed Cover, Bed Liner, XL Full Length Running Boards, Air Aid Kit, Gibson Single Out Cat Back, Superchips, TransGo Shift Kit, Hellwig Rear Sway Bar, Hellwig 2500# Overload Springs
Senior Member
Joined: Oct 1999
Posts: 554
Likes: 0
From: Trixters-Playground
The system is always adapting for varying conditions (TP, MLP, VSS, MAF...etc).
If the lookup tables are erased by disconnecting the battery, it can take up to 2 or 3 weeks to see the full benefit (relearn).
If you replace a part like the AirAid, it should flow better, so it is a good idea to do this. It will actually speed up the process of learning.
Timing, injector pulse width, IAC %, and shift points are modified.
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'98 4.6 5-sp F-150
We've come for your Tundra.
Where we started.
After a facelift.
A 2" drop!
F-150online Photo Album
trixters-playground@excite.com
Truckin' Magazine!
If the lookup tables are erased by disconnecting the battery, it can take up to 2 or 3 weeks to see the full benefit (relearn).
If you replace a part like the AirAid, it should flow better, so it is a good idea to do this. It will actually speed up the process of learning.
Timing, injector pulse width, IAC %, and shift points are modified.
------------------
'98 4.6 5-sp F-150
We've come for your Tundra.
Where we started.
After a facelift.
A 2" drop!
F-150online Photo Album
trixters-playground@excite.com
Truckin' Magazine!
Senior Member
Joined: Aug 1999
Posts: 1,565
Likes: 1
From: Columbus, Georgia
On page 135 of my 2000 owners manual, it mentions the adaptive learning of the computer for the transmission. My 98 did not have this feature (not mentioned in owners manual)...and I don't think the 99's do either. It states:
"To account for customer driving habits and conditions, your automatic transmission electronically controls the shift quality by using an adaptive learning strategy. The adaptive learning strategy is maintained by power from the battery. When the battery is disconnected or a new battery is installed, the transmission must relearn its adaptive strategy. Optimal shifting will resume within a few hundred kilometers (miles) of operation."
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2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with heavy duty cooling package, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, Pendaliner bedliner, K&N air filter, rubberized undercoating, cabin filtration system, Bugflector II, 5W-30 Mobil 1, engine build 10/4/99
"To account for customer driving habits and conditions, your automatic transmission electronically controls the shift quality by using an adaptive learning strategy. The adaptive learning strategy is maintained by power from the battery. When the battery is disconnected or a new battery is installed, the transmission must relearn its adaptive strategy. Optimal shifting will resume within a few hundred kilometers (miles) of operation."
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2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with heavy duty cooling package, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, Pendaliner bedliner, K&N air filter, rubberized undercoating, cabin filtration system, Bugflector II, 5W-30 Mobil 1, engine build 10/4/99