V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

After doing a mod to my car should I disconnect the battery?

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Old Jan 21, 2001 | 12:15 PM
  #1  
Monkie's Avatar
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From: Greenville, SC
After doing a mod to my car should I disconnect the battery?

Oh my god I hate hangovers! Anyways, I was wondering this because Ive heard you should. Should I? And if so how long? Thanks.


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1992 Camaro RS 3.1L
T5 Manual 5 speed
Cold/RAM air intake
Z-28 Exhaust
8.5mm MSD Ignition wires
TB Coolant bypass

Soon to be a 3.8L turbo RS

AIM screen name - Stopsign696

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95 (****) Probe GT,94 Mustang GT,91 CRX (dont ask me why he raced me),2nd Gen Z28 (350) haha to you V8 guys!,1992 RS 305 TBI (good race),First Gen Integra, Old Escort LX
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Old Jan 21, 2001 | 01:52 PM
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Ovrclck350's Avatar
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From: Longview, Tx
Isn't disconnecting your ECM fuse the same as disconnecting the battey basically?/???

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92 Bird 3.1L Auto
Best $750 I ever spent....

DRIVE IT LIKE YOU STOLE IT!

Kills:
93 Mustang LX (Before Mods)
98 or 99 Dodge Stratus (tough one, edged out at 40)
92 Camaro RS 305 TPI


Close Calls
94 Grand Am 3.1 V6
92 Cavalier 3.1 V6
01 Porsche 911 Turbo (Had em till first gear)

Mods-Jet Stage 2 Performance Chip, Accel Cap/Rotor, Accel 8.8 MM Wires, Accell Coil, AC Delco Rapidfire Plugs, Dynomax Catback, K&N

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Old Jan 21, 2001 | 11:33 PM
  #3  
88-RSport's Avatar
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well you disconect the negative pole on your battery for I think it was 15 to 30 sec. But you do that when ever you change any electrical stuff or sensors, anything that will flash you a code, the purpose of disconecting the battery is basically to clear your trouble codes and reset your computer.
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Old Jan 22, 2001 | 05:55 AM
  #4  
Kyle F's Avatar
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From: Columbus,OH
Well if you do all that will happen is the stored memory will be erased. THe car somewhat adjustr itself to your driving habits. I don't think it will help anything, unless you want to change your driving habits, which for a 16 year old with a Camaro it aint changing soon. So no you dont have to though if its anykind of electrical mod you shoud disconnect your negative post while your working on it.
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Old Jan 22, 2001 | 07:39 AM
  #5  
Red91Bird's Avatar
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From: Fort Worth TX, USA
After you do any mods you are "supposed" to disconnect the power (which BTW you are supposed to do when ya work on yer engine <----- read the chiltons). Leave it disconnected for 10 to 15 minutes. This resets the computer and erases the memories. When you go to restart your car it will most likely come to life and promptly die. Restart again and it should idle fine and might surge. Go for a drive on the highway for about 15 miles, the car WILL surge for about 25 to 50 miles. Mine hasn't died but it will surge from 400rpm to 1100 and stabilize at 600. Anyways the whole point is so the computer learns the new mod and adjusts for it. I have done it quite afew times with no problems with the exception of whats above.



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91 Firebird
3.1 w/
K&N filter, 160 stat, No TB heat, Direct Cold air, DynoMax CatBack, B&M MegaShifter, Performance Shift Kit,
Bosch platinum plugs,
7mm "stock" wires, Jensen CD330X Head unit, Jensen 120watt rear speakers
Stock front speakers,

0-30mph 4.25 Best 4.09
0-60mph 9.16 Best 9.09
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Old Jan 22, 2001 | 10:39 AM
  #6  
TomP's Avatar
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Red91's right. The computer will re-adjust anyway after a mod, but when you reset the computer, it has a clear memory. It doesn't have to un-learn anything; it learns everything from scratch.

If I do something major, I'll drive away for a half hour on the highway, and then come back- total driving time = 1 hour.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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Old Jan 22, 2001 | 11:43 AM
  #7  
Grim Reaper's Avatar
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From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Do not place too much "faith" on the Block Learn. Basically, it stores values from various cell that seem to work the best and will use those. This is strictly for "closed loop" operation and just gets the correct cell quicker.

It does not "compensate" or "readjusts" for mods per se. If the mod requires additional fuel, it can only give the additional fuel within the constraints of the BLM/INT at CLOSED LOOP.

@ WOT or open loop (like when first started, prolonged idle or long deceleration down a grade), the BLM does not function and you rely SOLELY on the tables within the eprom. If the tables are not correct, you car will not perform properly.

Bottom line, Block Learn does not compensate when the real solution is a new eprom. And what compensating it does, it only does at part throttle and while in closed loop operation.
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Old Jan 22, 2001 | 12:29 PM
  #8  
TomP's Avatar
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Glenn, are you talking about the MAF prom's or the MAP proms? I didn't know of any tables inside a MAF computer...


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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