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sprinkles08
sprinkles08, ASE Certified Technician
Category: Australia Car
Satisfied Customers: 22364
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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I have a 2008 Nissan navara 2.5 and on cold start she pulls

Customer Question

I have a 2008 Nissan navara 2.5 and on cold start she pulls back for about a second blows out back smoke then she fine for the rest of the day
Submitted: 1 year ago.
Category: Australia Car
Customer: replied 1 year ago.
It only does it after running for about 5 mins
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to Justanswer!

I'm assuming what you're feeling is a hesitation while driving. If it hesitates and smokes black then it's running rich at that time, whether it's a lack of boost or excessive fuel. It's possible that you could have a turbo or injector issue but it may also be an inaccurate sensor.

The first step in diagnosing the problem is seeing if any fault codes are setting. Have you checked for codes?

Customer: replied 1 year ago.
Not yet I will check today
Expert:  sprinkles08 replied 1 year ago.

Great!

Customer: replied 1 year ago.
Hi there checked for codes no codes
Expert:  sprinkles08 replied 1 year ago.

No warning lights ever come on then?

Customer: replied 1 year ago.
No
Expert:  sprinkles08 replied 1 year ago.

Do you have an actual scan tool that will monitor data, do actuator tests, etc?

Customer: replied 1 year ago.
Expert:  sprinkles08 replied 1 year ago.

Can you take a look at commanded versus actual boost when the problem is happening and see if actual boost is significantly less?