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Engine is acting funny

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    #1

    Engine is acting funny

    I just replaced my spark plugs, cap, rotor, and O2 sensor. I used NGK plugs from the dealer, and a Bosch O2 sensor. The car felt great after the change. But then my friend told me to disconect the battery overnite to clear the ECU. So i did and today i drove it. And it feels like shit. There is no power in the lower RPM range. I used to be able to chirp second gear, now it wont. If you get on it in 1st of 2nd, it kinda bogs for a second, then climbs. But it climbs slowly.

    At first i thought it was just a placebo affect. I thought i was just thinking that it was slower cuz i reset the ECU. But i just got home from racing a late model Sunfire with 2 extremely fat chicks in it and i lost. We raced from a light, and from a 40 mph roll. And its pissing me off cuz two weeks ago I raced a 04 sunfire wit twin exhaust wit 2 skinny kids in it and beat them by a car lenght every time.

    Does any one have any suggestions on what it might be?
    1991 Cb7 Coupe 5 Speed--SOLD
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    #2
    just drive it around for a while it'll clear itself


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      #3
      Originally posted by xczechboyx
      I just replaced my spark plugs, cap, rotor, and O2 sensor. I used NGK plugs from the dealer, and a Bosch O2 sensor. The car felt great after the change. But then my friend told me to disconect the battery overnite to clear the ECU. So i did and today i drove it. And it feels like shit. There is no power in the lower RPM range. I used to be able to chirp second gear, now it wont. If you get on it in 1st of 2nd, it kinda bogs for a second, then climbs. But it climbs slowly.

      At first i thought it was just a placebo affect. I thought i was just thinking that it was slower cuz i reset the ECU. But i just got home from racing a late model Sunfire with 2 extremely fat chicks in it and i lost. We raced from a light, and from a 40 mph roll. And its pissing me off cuz two weeks ago I raced a 04 sunfire wit twin exhaust wit 2 skinny kids in it and beat them by a car lenght every time.

      Does any one have any suggestions on what it might be?
      Should have just pulled the ECU fuse for a couple of seconds and put it in. Never heard of leaving the battery off all night. Pull the ECU fuse and put it on drive it for a while and see if it resets.

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        #4
        Originally posted by NAiL05
        Should have just pulled the ECU fuse for a couple of seconds and put it in. Never heard of leaving the battery off all night. Pull the ECU fuse and put it on drive it for a while and see if it resets.
        Exactly.

        After replacing the ECU fuse, turn your car on and let it idle for about 10 minutes, without touching the throttle.

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          #5
          yea i m gona go do that right now. So after letting it idle, do i drive it like normal? or should i drive it like a old lady?
          1991 Cb7 Coupe 5 Speed--SOLD
          2002 Nissan Sentra SE-R Spec V-- SOLD
          1994 Acura Legend GS
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            #6
            I would say drive it just like normal. I wouldn't go WOT or anything though. Give it some time to re-set itself.

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