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Hey Labsy, Before you get too far down the turbo out nightmare, try bypassing the Boost Control solenoid and see if it makes any difference (pictured). Simply join the hoses that are pictured with the yellow and blue markings while it is idling and you may hear the engine "sweeten up". If it...

I think you will find that it is the common fault of the EGR actuator shaft failing (see attached photos). It usually fiddles and farts a few times before totally breaking and jamming the valve. This then brings up the P0401 code. I haven't yet found how the shaft itself can be repaired. When...

These motors have a common problem with the EGR starting to fail and they will not throw a code until they fully lose power. The problem is they snap the shaft where the solenoid actuates and will work fine for periods but then completely breaks and that's when you get the code. I have replaced...

Beware catch cans on these motors If they don't have a relief valve and the filter blocks I would expect to see a few leaks appearing. I have ended up taking my catch can off and with the EGR cable on it I am not seeing any build up in the intake. Yep it breathes heavy but it uses about 2...

Hi Labsy, The Australian models don't have the 2nd unit fitted so it is only the top unit that you will find. A couple of years ago I had the opportunity to see a top unit that had been dissected and the design of being long type rods indicated that blockages were unlikely (according to the...

Labsy, just a question here. What caused the Boost sensor damage? Is there any chance there is damage to the wiring further back into the loom?

And the worst part about a broken wire is that it could be on any part of the input sensor array. However, given the code displayed it might be a good pointer to start around the back of the motor where all those plugs are. Can anyone shed a light on what diagnostic program was being used in...

Hi Tajine, I agree with what tweak'e and Landmannnn are saying. An even 120 psi across all cylinders is nearly unheard of. Likewise I would be reluctant to suggest that it is a timing issue due to the fact that this motor runs 2 chains. 1 for each bank. Combine the chance of it being a problem...

Sorry Daniel. Had to view the video on a different device. Just a gut feeling but I reckon it is possibly a dust issue. I have a touch screen in another vehicle that changes volume on me and I have to keep cleaning it out with contact cleaner.

Hi Daniel, By chance are you hearing another radio station coming over the top of the one you have selected? Do you have a photo of which radio is fitted (in working mode)?

Good to see you are getting there Labsy. 30 psi is a figure I have seen promoted before and mine is coming in at about the same on electronic monitoring. I will be installing a manual gauge soon because I don't necessarily trust the accuracy or response of electronic monitoring. I take it from...

Hi Labsy, There are so many inputs that this system uses to achieve one outcome (read gear change or more boost) that it can be very hard to find the exact issue. Given the code that you are getting (P0235) I would be thinking points 4 or 5 (of the manual) as I understand it is only happening...

Hi Labsy I think you will be right with the boost control solenoid You may be noticing it sounding a little more drummy at idle and it seems to have poor pulling until it gets closer to 2k revs You can bypass the BCS by butt joining the vacuum hoses in order to test ONLY while it is idling You...

Hi Diepod, Don't get too concerned about the glow plug indicator light on a V9X. I have heard of 20 year old Eskimos that have yet to see it! Basically, it doesn't come on for long but it does illuminate. The attached chart will tell you the parameters. Removing the instrument cluster is a...

Hi FiveFiveZero, I don't know the size off the top of my head. I was going to do an oil change when I get back from Bali at the weekend but I smashed a couple of bones in my lower leg than needed surgery (no scooter or alcohol involved) so methinks that is now on the backburner. I do have one...

Hi FiveFiveZero The quickest way to get a sump plug tool is to grind the male end of a 3/8" socket extension by about 1mm on each side. You will probably find that the tension let's go with a bit of a crack. I have done mine a few...

Hi everyone The V9X motor has a massive amount of crank case ventilation and you will always see a significant amount of oil vapour coming from the oil filler point. You should also note that directly under the filler point is a timing chain and cog and you will even notice droplets of oil...

The STX550 did not have a DPF fitted to them (empty shell only) so there should be no problem there. I wonder if the O2 sensor was refitted correctly if you had a new dump pipe as part of the new 3". It is not something that can simply be unplugged and it is very easily damaged. I dropped my...

If this is in Aus then there is no DPF fitted to the v9x so it does sound more like air or the old oil build up in the intake suddenly going through the engine trick. In regard to the solenoid, it is at the rear of the bank 2 or left bank pressure rail. It holds a constant pressure of about...

I will have another look at the notes I have written regarding the shut off system for these motors but I seem to remember there is a solenoid that opens when you turn the key off which drops the injector fuel pressure supply. Perhaps there is air leaking back through the lines and enter that...