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Ive personally removed the plugs and visually inspected the pins and cleaned with contact cleaner. Power Output has not been inspected (That's one of the things I asked the service department to do and of course didn't do that, apparently following a book is a little tricky these days)...

Sorry ECB, not ECU

Id love to get my hands on another ecu just to test it, to see if that makes a difference. Anyone fancy sending me theres?

Well, the techs at the dealership have put two (brand new) solenoids on, plus the brand new one that I replaced, and they said that the results hadn't changed for them. So surely, three new solenoids in a row wouldn't fail haha? Or do I just have the worst luck!

Or maybe its not getting the correct signal from the ECB. Going to hand it over to avionics at work for some advice and see how I go.

It doesn't move when actuating arm is connected to the solenoid vacuum line. Ive taken the source vacuum line and applied it directly to the turbo actuator (rather than going through the solenoid) and holy crap the power is awesome. So a vacuum is there which leads me to suspect it is a power...

Or any advice where to go from here haha?

Did some troubleshooting. Check the voltage running to the tc boost control solenoid. It was just getting a constant 14v no matter what revs. Is there a fuse or something I can check for the solenoid?

Will give that a look. Took it to the dealership yesterday and can honestly say what a bunch of hopeless fools. $520 later and still no fault found though they do agree that there is something wrong!

G'day guys, So I'm stumped. Replaced solenoid, replaced the 3 vacuum hoses that come from the solenoid, checked the actuator for movement when a vacuum was provided by myself. Any other suggestions? Cheers

G'day guys, Just checking if anyone has a copy of the Nissan Parts Catalogue, or knows where to find one? Cheers,

Dont suppose you know the Part Number so I can provide it to them?

G'day guys, Just thought id give you all an update, check the solenoid and yep she's kaput. Also got my boost figures as the OBDII Transmitter came today (Finally!) At foot to the floor the most I could get was 3.8psi of boost.... Ill replace the solenoid and inform you on how I go. Now, does...

Just one question though, Should the actuator arm be able to move without the engine running?

Haha, copy that. Ill try out what you suggested about creating the vacuum and get back to you. Now I just have to find Elton John's number for tips... Cheers

G'day lads, sorry if this pops up a few times on this thread, tried to post a few messages before but it said that post had to be approved by a moderator. Vacuum hoses checked out all good, no cracks, and they are all secure Ive carried out a quick inspection on the actuator arm in...

Just checked the actuator, (left it idling, no revs applied) and noticed no movement what so ever. I saw in an earlier thread that there should be between 3-5mm. Taken from this thread: http://www.navara.asia/showthread.php?t=26315&highlight=Turbo+Actuator "Here's the test: start the car and...

I've got some other details that I forgot to mention also, the black smoke only seems to kick in at around 2000rpm. When I put my foot down there just seems to be a lack of power, I cant really hear a turbo whistle but I've been told the whistle is fairly quiet haha. The car struggles a lot...

Also forgot to mention, fuel economy is not the greatest. Getting around 500km per 80l Tank. Truck is a 2008 2.5 L AUTO STX

G'day guys, I've been trawling these forums for a while as a guest for an answer to my Black smoke issue and I've tried A lot of the fixes that you gents have suggested but to no avail. So I thought id register today to ask for some help as I am stumped. MAF has been cleaned, as far as I can...