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#528516 - 08/29/04 10:24 PM Reseting Computer
ltd76gold Offline
Member

Registered: 04/12/03
Posts: 131
Loc: ZigZag Oregon USA
Just installed dual exhaust '99 GM. Will resetting the computer "ecm" cause all memories to be reset?

ie..

user code
door locks in drive
etc etc?

Thanks guys... Did the search, tried to claw the info out of the archives. no avail


Doug k
_________________________
2005 MGM.

"the more they tinker with the plumbing, the easier it is to stop up the pipes" Montgomery Scott

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#528517 - 08/29/04 10:45 PM Re: Reseting Computer
Colonel Offline

Grand Poobah

Registered: 08/28/01
Posts: 12164
Loc: Louisville, KY
It clears your radio presets, check engine light codes.. your car forgets its idle and fuel trim settings..

door locks in drive? thats a CMOS setting that is hard wired. I doubt you will have to worry about your keyless entry code.
_________________________

Quad-Cam Cop Engine, Bullet Proof Tires & Windows, Stab Proof Seats, Steel Door Beams, SuperCharger, Anti-Deer Harmonic Wheel Covers, Trunk Mounted Counterbalance System
..and many other things people told me my car is equipped with.

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#528518 - 08/31/04 09:18 PM Re: Reseting Computer
ltd76gold Offline
Member

Registered: 04/12/03
Posts: 131
Loc: ZigZag Oregon USA
Big Thanks!

And then its smart enough to know that dual exhaust has been installed. Wow

Thanks again

Doug
_________________________
2005 MGM.

"the more they tinker with the plumbing, the easier it is to stop up the pipes" Montgomery Scott

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#528519 - 08/31/04 09:30 PM Re: Reseting Computer
Embassy Offline


Grand Poobah

Registered: 10/20/01
Posts: 14642
Loc: Mao's Smoking Lounge and Piano...
Here is Metro's instructions on how to re-train your car's idle.
_________________________
2003 Procharged Marauder, F.I.T. #003
2004 SAP P71
The EmbassyVic:SOLD!
'01 P71: SOLD!

Keeping a black car clean is not a hobby. It's a part time job.
Support the troops.

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#528520 - 08/31/04 10:55 PM Re: Reseting Computer
my96p71 Offline
Member

Registered: 05/01/04
Posts: 300
Loc: USA
I have a question about re-seting the computer I hope its ok.

I reset mine and now I notice the vic runs hotter now than it use to.Any ideas why?

Thx
_________________________


01 Ranger Edge 26,*** miles
96 Crown Victoria 81,5** Miles p71 Ret.L.V.M.P.D.


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#528521 - 09/01/04 12:09 AM Re: Reseting Computer
Colonel Offline

Grand Poobah

Registered: 08/28/01
Posts: 12164
Loc: Louisville, KY
yes, reset your brain. check car's coolant levels

As far as resetting the computer.. I dont know which year it switched but for my 1995 and similar years all you have to do is let it idle to normal temp then drive it for about 10 miles.

Metro's page give directions which sound like from a 2000ish vic. (I've read the 1995 and 2003 manual for retraining the idle trim controls.)
_________________________

Quad-Cam Cop Engine, Bullet Proof Tires & Windows, Stab Proof Seats, Steel Door Beams, SuperCharger, Anti-Deer Harmonic Wheel Covers, Trunk Mounted Counterbalance System
..and many other things people told me my car is equipped with.

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#528522 - 09/01/04 12:15 AM Re: Reseting Computer
ltd76gold Offline
Member

Registered: 04/12/03
Posts: 131
Loc: ZigZag Oregon USA
The radio memory was not lost. How long does the battery need to be disconnected? I gave it a good ten minutes.

The Idle did change, so I went thru the process metro posted anyway.

Just one of those nagging concerns about the radio memory.

Thanks

Doug
_________________________
2005 MGM.

"the more they tinker with the plumbing, the easier it is to stop up the pipes" Montgomery Scott

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#528523 - 09/01/04 12:57 AM Re: Reseting Computer
Colonel Offline

Grand Poobah

Registered: 08/28/01
Posts: 12164
Loc: Louisville, KY
If the radio presets were not forgotten, I dont see how the PCM was cleared. Try 30 minutes.. leave some lights on, doors open to help drain.

You will notice a rough idle upon restart.
_________________________

Quad-Cam Cop Engine, Bullet Proof Tires & Windows, Stab Proof Seats, Steel Door Beams, SuperCharger, Anti-Deer Harmonic Wheel Covers, Trunk Mounted Counterbalance System
..and many other things people told me my car is equipped with.

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#528524 - 09/02/04 02:34 AM Re: Reseting Computer
ltd76gold Offline
Member

Registered: 04/12/03
Posts: 131
Loc: ZigZag Oregon USA
I seem to remember (but can't find the thread) where removing a fuse does the deed. Which fuse and where and I'm all over it. Otherwise I'll just disconnect the battery overnight and go from there.

Thanks for the insight Colonel!

Doug
_________________________
2005 MGM.

"the more they tinker with the plumbing, the easier it is to stop up the pipes" Montgomery Scott

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#528525 - 09/02/04 04:13 AM Re: Reseting Computer
MGM95 Offline
Member

Registered: 05/15/04
Posts: 321
Loc: the Netherlands
Hello.
I have a Mercury GM 95 and i have a workshop CD-rom with all the data you need.
When you reset the computer (according to my cd-rom) it will not clear KAM.
Could anyone help me with this??
_________________________
Mercury Grand Marquis LS HPP 1995
160000km.
Tires front and rear: Bridgestone 960 A/S Pole Position. Installed: Feb 2007.

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#528526 - 09/02/04 01:22 PM Re: Reseting Computer
Colonel Offline

Grand Poobah

Registered: 08/28/01
Posts: 12164
Loc: Louisville, KY
Well.. you can start by stating what KAM is.
_________________________

Quad-Cam Cop Engine, Bullet Proof Tires & Windows, Stab Proof Seats, Steel Door Beams, SuperCharger, Anti-Deer Harmonic Wheel Covers, Trunk Mounted Counterbalance System
..and many other things people told me my car is equipped with.

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#528527 - 09/02/04 02:15 PM Re: Reseting Computer
Chevyguy Offline

Poobah

Registered: 01/05/04
Posts: 9449
Loc: Winchester Mass
Keep Alive Memory This is what you are trying to empty, as the computer fills these tables with data from running the motor for some time 40 warmup cycles approx. And uses the averages from those 40 cycles to set your running parameters.

So If you make some major change or fix a broken sensor, it would take quite a while to see a difference. This is why you reset the computer.
_________________________
2004 MarauderM79 155K miles Jmod!! Rockin Stock tune Daily, Muscle Merc tune for track 14.85 @95.63
2004 Crown Vic LX SOLD!!

New Daily 2016 Dodge Charger R/T Road and track, purchase with 16K now 23K after 3 months. 5.7 Hemi, 8 speed ZF trans 3.06 open rear 13.98 @ 99.2 mph 4740 lbs with driver!!

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Project car 74 Chevy Laguna type S-3, # match 400 SBC

Previous rides
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#528528 - 09/04/04 06:40 AM Re: Reseting Computer
Toms92LX Offline
Member

Registered: 11/16/03
Posts: 345
On a 1995 and later, you needed a scan tool to clear the ECM - pulling the fuse or battery will not reset the KAM on an OBDII computer system

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#528529 - 09/05/04 10:10 PM Re: Reseting Computer
ltd76gold Offline
Member

Registered: 04/12/03
Posts: 131
Loc: ZigZag Oregon USA
Ok, So lets see if I got this right.

#1. To clear the computers memory I need a "scan tool"?

#2. If I just drive the sucker, after 40 "startups" it will learn that it has duals? I don't have to do anything?


I'm opting for version 2,

Thanks all

Doug k
_________________________
2005 MGM.

"the more they tinker with the plumbing, the easier it is to stop up the pipes" Montgomery Scott

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#528530 - 09/05/04 10:52 PM Re: Reseting Computer
Colonel Offline

Grand Poobah

Registered: 08/28/01
Posts: 12164
Loc: Louisville, KY
There's no learning it has duals. It just has them. You car will simply perform better because of them or what ever you want to claim. Computer will have nothing to do with it. Though getting a P71 computer won't hurt!

You only need to unhook your battery to reset your computer, thus clearing the memory, clearing Check Engine codes, clearing radio station presets..

After you have you battery unhooked for about 30 minutes. follow the retraining process here..
http://www.redpulsar.us/~coldfusion/idle.html
_________________________

Quad-Cam Cop Engine, Bullet Proof Tires & Windows, Stab Proof Seats, Steel Door Beams, SuperCharger, Anti-Deer Harmonic Wheel Covers, Trunk Mounted Counterbalance System
..and many other things people told me my car is equipped with.

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