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Frog99

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Discussion starter · #1 ·
Help I’m a my wits end my nav is belching out heavy black smoke and has no power, so far I’ve changed injectors, turbo, maf , Map, crank and cam sensors the throttle body fuel pressure sensor on fuel rail, suction control valve, the egr is blanked, changed inter cooler and pipes, boost control valve,replaced the 3 vacuum pipes from the boost control valve still no difference, it get slightly better if I take the pipe off the turbo actuator, I’m lost now any help would be appreciated, thanks
 
Ouch, that does sound like you're having a tough time of it.

Are you able to connect a fault code reader to the car to read live data/faults from the ECU?

Also, are the parts you have changed new Nissan, 2nd hand Nissan or aftermarket?

Did you change them all in one go or do them one at a time?
 
Discussion starter · #4 ·
Changed parts one at a time it’s been off the road for over a month, it’s not showing any fault codes, however the reader I’ve got is not the greatest so maybe it’s time to pay some to plug it into a super dooper one
 
Changed parts one at a time it’s been off the road for over a month, it’s not showing any fault codes, however the reader I’ve got is not the greatest so maybe it’s time to pay some to plug it into a super dooper one
No super duper reader required. Just one that can give live data from the ECU. Torque app on an android phone is fine.

I have posted pictures of readings from a good engine in the D40 section. This may narrow down your problem.

Also, if you've changed parts for cheap copies you may have introduced new faults. That's why I asked about the parts you've replaced.
 
Discussion starter · #10 ·
Getting vacuum up to the actuator we did replace the boost control valve with a cheap one however we have two nav in the house so we swapped between the two and still no difference where on the other side of the engine should I be looking
 
If you plug the vac directly on the actuator, does it pull up the actuator all the way? If it does then I guess you have enough vacuum.


The leak point, if there is one, is found by following the small metal pipe over the engine.
 
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