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Murano Nissan Murano Discussion Forum

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  #1  
Old 02-11-2009, 01:05 PM
tubbedz's Avatar
tubbedz tubbedz is offline
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2003 Murano
 
Join Date: Feb 2009
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Default Spark Plug - ECU learning

I'm going to attempt to change my Murano spark glugs this weekend. In the process the throttle body needs to be removed. Because it is a "drive by wire" throttle body will I need to perform the following: 1)ECU Reset 2) Acc Pedal Release Position Learning 3)Throttle Valve Closed Position Learning.

The last time I removed the throttle body for cleaning, a CEL popped up......took it to the dealer.....they had to Relearn the idle RPM...and reflash the ECU and upgrade the software.

If I have to go through this again......I might as well have the dealer install the spark plugs. Any one try this?????
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  #2  
Old 02-11-2009, 03:18 PM
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sergey85 sergey85 is offline
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2002 Maxima
 
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just disconnect the battery and do it. i dont it a few times now and all that was wrong was the sunroof but i just reset it. u know how to relearn so no neeed to go to the dealer. dont u have the vq35 in your car?
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  #3  
Old 02-11-2009, 04:55 PM
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tubbedz tubbedz is offline
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Thanks sergey85!!

There's a TSB for 2004 -2005 Muranos that if the battery is not hooked up for over an hour the ECU will need to relearn everything. The car is running fine now and I would hate to screw up the idle rpm and throttle by doing the "on/off" "on/off" relearn ECU thing.
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  #4  
Old 02-13-2009, 04:03 AM
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tech22 tech22 is offline
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2005 Frontier Crew Cab Frontier Crew Cab
05 nissan frontier
 
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Taking power away from the ECM for an extended period of time will require you to preform the throttle position/idle air volume learn. Go to the service manual here and find your vehicle. Go to chapter EC and page 64. This will outline just what you will need to do.There will be a period of (re-learning) for the ECM as you drive so just drive your vehicle as you would normally and you will be fine. Many times customers never even know it was done...
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  #5  
Old 02-13-2009, 08:56 AM
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tubbedz tubbedz is offline
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2003 Murano
 
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OK....I got my hands on a Nissan Murano Repair Manual and I read it thoroughly. If any of you guys need the Repair Manual I can e-mail it to you in pdf format and year specific 2003- 2008.

1)In the manual it states that anytime the throttle body Electric Throttle Control Actuator is unplugged you need to perform the "Throttle Valve Closed Position Learning" procedure.

2)If the Throttle Body control actuator is replaced, you need to perform the "Idle Air Volume Learning" procedure and the "Throttle Valve Closed Position Learning".

So that means don't unplug it unless you have too.

Also, I'm not sure that if the battery is disconected these prodecures may also need to be performed.(I need to read the manual some more).I'm also assuming that any other Nissan vehicle equipped with the VQ35DE "drive by wire" throttle body must do this also.

Boy....Nissan makes it so difficult to maintain......
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  #6  
Old 09-13-2009, 06:52 AM
shulsey1 shulsey1 is offline
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2004 Murano
2004 Murano
 
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Location: Oklahoma
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I am new to this forum, It is excellent. I am in the process of changing the Alternator of my 2004 murano. It is quite the Process! I could sure use the repair manual. could you please email me a copy? [email protected]. :) thanks.
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  #7  
Old 12-30-2011, 06:14 AM
tack
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Hi i new to this forum. i have a nissan murano 2004. can you please email me a copy of repair manual. thanks [email protected]
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  #8  
Old 12-31-2016, 08:35 AM
rdlarson69 rdlarson69 is offline
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2005 Murano
 
Join Date: Dec 2016
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Could you email the manual to [email protected]? I have an p1800 code and a 301 miss fire cylinder 1. Thank you greatly for sharing.
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  #9  
Old 12-31-2016, 11:42 AM
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NissanTech NissanTech is offline
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2004 Xterra
 
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Location: California
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Quote:
Originally Posted by rdlarson69 View Post
Could you email the manual to [email protected]? I have an p1800 code and a 301 miss fire cylinder 1. Thank you greatly for sharing.
You can download the "Engine Control" section free from here: http://x.nissanhelp.com/forums/Knowledgebase/links/151/

Also, you can find more information about the P1800 and P0301 codes here:

P1800 NISSAN - Variable Intake Air System Control Solenoid Valve Circuit
Read more: https://www.autocodes.com/p1800_nissan.html

P0301 NISSAN - Number 1 Cylinder Misfire Detected
Read more: https://www.autocodes.com/p0301_nissan.html
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