Computer Reset??
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Member
Joined: Mar 2001
Posts: 21
Likes: 0
From: Toronto, Ontario, Canada
Computer Reset??
Does anyone know how to reset the computer on a 98 4.6L V8 I have programmed it with a buddys hypertech computer and I don't like it because my truck is not running right so I want it back to stock. HELP??
Member
Joined: Jul 1999
Posts: 84
Likes: 0
From: Plano, Texas, USA
regalman,
Disconnect the battery terminals and then turn on your headlights. This will reset the computer (turning on the lights drains any remaining voltage in capacitors, etc.) to a default stock condition.
I did it over the weekend to erase a bogus "check engine" code and the truck is running better than before.
Disconnect the battery terminals and then turn on your headlights. This will reset the computer (turning on the lights drains any remaining voltage in capacitors, etc.) to a default stock condition.
I did it over the weekend to erase a bogus "check engine" code and the truck is running better than before.
Senior Member
Joined: May 2000
Posts: 4,761
Likes: 0
Make sure you turn off the headlights before you re-connect the battery !!
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2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.
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2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.
Technical Article Contributor
Joined: Dec 1997
Posts: 9,417
Likes: 11
From: Windsor,Ontario,Canada
regalman,
If I understand the Hypertec system, it trades your program for the one stored in the
programmer. So your stock program is in the hypertec module. Resetting the computer will do just that, it will not restore your stock program. BTW on the 98 inside the engine compartment there is a Engine mini-fuse block. It has slots for 6 mini fuses. Pull the first one 5A. This is the PCM Keep Alive Memory. This will reset the PCM and keep your radio station presets. No need for the head light thing.
Regards
Jean Marc Chartier
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00 F-150 XLT SC Flairside 4x4 4.6 w/5spd 3.55LSD
Warn XD9000i, skid plates, Draw tite class III,
Rancho RSX Reflex shocks, MAC 8.8 Axle Girdle
BFG 285/75 R16 MTs,
Borla Cat Back, Headman Headers,
Custom air intake system with modified
air box, Ported Throttle body,
Shortened MAF sensor tower,
K&N air filter,
Superchips
If I understand the Hypertec system, it trades your program for the one stored in the
programmer. So your stock program is in the hypertec module. Resetting the computer will do just that, it will not restore your stock program. BTW on the 98 inside the engine compartment there is a Engine mini-fuse block. It has slots for 6 mini fuses. Pull the first one 5A. This is the PCM Keep Alive Memory. This will reset the PCM and keep your radio station presets. No need for the head light thing.
Regards
Jean Marc Chartier
------------------
00 F-150 XLT SC Flairside 4x4 4.6 w/5spd 3.55LSD
Warn XD9000i, skid plates, Draw tite class III,
Rancho RSX Reflex shocks, MAC 8.8 Axle Girdle
BFG 285/75 R16 MTs,
Borla Cat Back, Headman Headers,
Custom air intake system with modified
air box, Ported Throttle body,
Shortened MAF sensor tower,
K&N air filter,
Superchips