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If you don’t there will be several lights that come on on the dash afterwards and you will have to disconnect it to clear them out.
Why disconnect the negative battery terminal?
If you disconnect the negative terminal, there is no need to disconnect the positive terminal, unless you are removing the battery.Any work disconnect negative first then positive
If the car loses battery power for a extended time then yes it forgets its "settings" if you will
That's true regardless disconnect negative when doing engine work or electrical or even take the cover you terminals or take the battery out so tools dont drop and connectIf you disconnect the negative terminal, there is no need to disconnect the positive terminal, unless you are removing the battery.
I wasn’t looking forward to taking off an intake. What did you end to take off?Found the denso plugs on rockauto for 12 each and they had them here the next day. Did not have to take intake off and took all of 45 minutes for complete job. Denso 3491 is the exact same plug as oem. Definitely remember to disconnect the negative terminal.