Computer reset after battery disconnected?
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Joined: Feb 2006
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Computer reset after battery disconnected?
My '91 f150 4.9L 5spd has a little miss when taking off easy. I've had the negative cable disconnected for a week while it was in my basement with the trans out waiting for clutch parts (got shipped the wrong part #*%##!!!).
My question is if it's possible that the sputtering may be due to the computer resetting, or would that even happen if only the negative cable was pulled?
My question is if it's possible that the sputtering may be due to the computer resetting, or would that even happen if only the negative cable was pulled?
Posting Guru
Joined: Sep 2002
Posts: 2,420
Likes: 3
From: Langhorne, PA
Unfortunately the computer reset, and more bad news is that it shouldn't take too long to re-compensate.
Good news! You should have a clean slate to start with when pulling your diagnostic codes. THat is the only place to begin. See Fordfuelinjection.com for the procedure, the Haynes or chiltons has the procedure as well.
Ford electronics, emissions, and fuel systems will cause problems if you look at them the wrong way; It is a great system, but if just one or two sensors or actuators aren't working dead-on correctly you'll get hesitation or rough idle. Many idle problems are caused by build-up of oily carbon deposits, that clog things like your IAC, PCV, throttle body and butterfly plate, etc. etc.
We need codes!!!!!!!
Go to the store and get a can of SEAFOAM asap, a good intake cleaning may be needed. Do a search for SEAFOAM here, you'll find out how to use it, although the instructions on the can work too. I SEAFOAM my engine intake a few times per year.
Good news! You should have a clean slate to start with when pulling your diagnostic codes. THat is the only place to begin. See Fordfuelinjection.com for the procedure, the Haynes or chiltons has the procedure as well.
Ford electronics, emissions, and fuel systems will cause problems if you look at them the wrong way; It is a great system, but if just one or two sensors or actuators aren't working dead-on correctly you'll get hesitation or rough idle. Many idle problems are caused by build-up of oily carbon deposits, that clog things like your IAC, PCV, throttle body and butterfly plate, etc. etc.
We need codes!!!!!!!
Go to the store and get a can of SEAFOAM asap, a good intake cleaning may be needed. Do a search for SEAFOAM here, you'll find out how to use it, although the instructions on the can work too. I SEAFOAM my engine intake a few times per year.
Senior User
Joined: May 2005
Posts: 217
Likes: 0
From: geneva IL
the computer resetting should not make you truck miss it will run little rough first start up after siting. but check your ignition system wires cap & rotor for build up. and fuel filter if you are not gitting anny codes
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