I have heard about disconnectiong the battery to do a full reset on the Maxima ECU. I know it clears out the memory and when the battery is reconnected, the car has to "relearn" everything. The question is this, How long should I leave the battery disconnected to let the ECU completely clear itself?

Thanks to everyone here for all the info and help in recent weeks, Its greatly appreciated.

 

Overnight would be enough.

 

Kewl.... Thanks BluMax..... Any suggestions for when I connect the battery back up tomorrow morning? What should I expect as far as how it might run and things like that......

 

I don't know if this works... someone mentioned it and i did it anyways. When you turn on the car, don't turn the wheel or anything... just let it idle for 5 min.

 

I have never heard that...... If I had not already disconnected my battery, I would actually try that....

 

well this is right after reconnecting your battery, but I assume you have already done it. Oh well, just drive and sooner or later, the ECU does it's automatic re-learning all over again.

 

24 hours for a full reset
but why not just reset it manually? (the screwdriver method)

 

i thnk screwdriver is just to reset the CEL

 

My ECU has been acting weird lately, and I want to unplug it and let it reset itself to see if it might go back to normal...... I have been getting 2 codes from the ECU and I have replaced the parts.... Not long after that, my ECU started acting funny.... The CEL wont come on when I turn on the ignition, and it does come on sometimes after I start the car..... I know the bulb is not blown.... Its a mess.... lol......

 

That sucks.

 

Yeah it sucks a$$..... I want to get it fixed, and I dont want to end up getting rid of it.... lol......