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Problem with Nissan Patrol GU IV 2006

Posted: Thu Jul 28, 2011 11:09 pm
by Hondacr250
Hi guys,
I have a Nissan PAatrol GU IV ZD30, manual. As soon as i bought the car (used) i noticed that when i was changing gears from 3rd-4th and 4th - 5th, around 2300rpm you could fill like the turbo wasn't working and the after 2800rpm it was just fine, like normal. Then i took the car and i chagne the map of the car. The problem is stil the same. I took it to a diesel centre and they told me that it may be overboost. I checked the turbo pressure but it's ok. Then i took it to a diagnostic centre ( the same did the mapping) and they checked the vac solenoid, the MAF sensor and everything is ok. Does anybody had a similar problem?
Thanks.