Please read all instructions and be familiar with them before any attempts.Ī stop watch or an analog clock with a second’s needle will be useful. Note: Make sure engine is at operating temp and all electrical loads are turned off prior to doing the idle air volume learning. Give it a try, but be may take a couple (or more) tries with your stopwatch to get it right.timing is extremely important here! ( Edit: See newly added "Easy Method" below). I can actually catch a bit of rubber now, which I haven't been able to do for a long time! It also cured a slightly erratic idle I was having. In fact, after doing this, I got back some of my low end grunt I'd lost over the past months.
LEARNING FACTORY SWITCH FULL
I, personally, have seen the best improvement in my engine by doing the full procedure, starting with the ecu reset, followed by the other procedures. This method restores the proper min/max position voltages that the ecu sees from them. This can cause problems like loss of power and idle issues. After some use, these things get a little out of whack, and get kinda lost. I think it's important to do the learning procedures periodically, as it basically recalibrates the electro-mechanical positioners, namely the throttle valve positioner and the accelerator pedal positioners. The ecu reset procedure in invaluabe, as it allows almost instant reset of the ecu's RAM instead of the usual method of disconnecting the battery and guessing as to how long you must leave it disconnected. With the exception of the ecu reset procedure, all the other procedures here are available in the Titan service manual. I came across this info a couple of months ago while cruising the 350Z section of the Technosquare site.
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