1997 Nissan Max. Steps to get computer to read again after reset.
I reset my computer by disconnecting the battery for 2 hours (I hope that was right), but a guy told me once there is are steps to take to get the computer to read again. I am trying to pass emissions inspection. The instructions were like: 1. drive 55mph for 10 min and turn car off. 2. Start and drive 30mph for 5min...etc.
Does anybody have the correct steps?
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that usually means that someone either disconnected the battery or the computer was reset. You need to drive the vehicle for about at least 20 minutes at road speed so the computer can scan all modules.
When you disconnect the battery, you should disconnect for at least 2 hours. Put a bulb across the battery terminals to fully dissipate any power in electrical components and then hold the battery connectors together for 5 minutes. Put the key in the ignition, this is VERY important. Connect the negative terminal, connect the positive terminal in one movement. Leave 15 minutes for the systems to reset.
Soft reset, disconnecting the negative battery cable few minutes; if the check engine light come on again, need scanned the computer to know exactly what OBD Fault Code is stored there. Sometimes Autozone or Autoshop with scanner reader tools make this for free. Feel free to contact us in the previous code links.
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Disconnect battery for an hour , or even overnight this should reset the computer. If this works when u start your car the light should be off. Unfortunately the OBD 2 system picks up any faults and relay them to the computer, if the light comes back on could be a sensor relaying to the computer to keep the light on so u know there is something wrong, If your light is still on you will need to hook up the car to a OBD2 scanner to remove the code, and tell u what the code is. Dont just clear the code, write down the code and then clear the computer. Unhook the scanner, turn ignition off, then on and start wait about ten minutes, if the light comes back on check out on line what the code means so you can get it fixed. then after fixed you will have to repeat either of the 2 steps provided to remove the code again. hope it works out for you... I drive a 98 Grand Prix GTP
if you have a MAF sensor in the air intake system, clean the wires gently with carb cleaner spary and a toothbrush. Disconnect battery for 2 hours. Reconnect and drive for 10 miles till computer relearns clean sensor. may drive rough during this drive.
Turn the key to position ONE (turn one position from where the key is inserted). The radio should be left on. Make sure the a/c blower is in the off position. There should be no dash lights on. It should reset somewhere between two to eight hours. After at least two hours it should read CODE again.
If you cut the power, or the battery goes dead it won't reset.