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 Post subject: T31 Idle position re-learn
PostPosted: Tue Nov 28, 2017 8:11 pm 
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Joined: Thu Feb 16, 2017 12:34 pm
Posts: 7
HI,

I have a 2008 T31 2.0 Diesel M9R. I recently took the EGR system apart to clean, and the car is running much more smoothly now. The service manual says after doing this you should perform a throttle position and EGR re-learn, using the Nissan Consult tool. Does anyone know if there is a manual procedure for this to save me taking it to Nissan? (I've found a procedure for the T30 online, but not T31)

I phoned Nissan and they said it would be £78 to "put it on the computer". Seems a lot for 10 minutes work! They also tried to tell me the throttle and EGR valves cannot be re-installed after they've been removed and must be replaced though, so I'm taking all this with a pinch of salt....

Any help much appreciated!

Thanks
Richard


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 Post subject: Re: T31 Idle position re-learn
PostPosted: Tue Nov 28, 2017 8:53 pm 
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Joined: Fri Nov 08, 2013 8:20 pm
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Location: Northampton
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Hi Richard

You could try the old method of resetting.

Remove the pos and neg leads from the battery
Leave for 30 mins
Short the pos and neg leads together
Reconnect pos and neg leads to battery (pos first then neg)

This resets the ecu which will the relearn all the settings such as tps, fuel pump, egr etc.

This has worked for me on my old T30, my old Rav4 and my old Juke so dont see why it wont work on your T31.

You do this at your own risk :biggrin: :thumbs:

Best regards
Milton :biggrin:


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 Post subject: Re: T31 Idle position re-learn
PostPosted: Fri May 18, 2018 2:07 pm 
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Joined: Thu Feb 16, 2017 12:34 pm
Posts: 7
Sorry I never gave an update on this!

I tried as Milton said but couldn't tell whether it'd had any affect, worth a try though!

In the end I spoke to a mechanic at the Nissan garage and he persuaded the service desk people to only charge for the time it takes to do the idle relearn procedure, not the £78 diagnostic fee so that was a result.

Still didn't seem to make any difference though so back to square 1 but with a clean EGR!


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