Alrighties. I've been having some trouble with my 850R and today it just got weird.
It started idling high about a week ago, I'm yet to pull codes which I'll hopefully do soon. Was thinking idler control valve is a bit skewwy perhaps. I do not really know at the moment. But today I seemed to have lost most of the boost. Nothing on the gauge, more sluggish than usual. Lead up to that was the higher idle (if related or not, I'll find out). Been blowing more and more blue smoke for a while, especially under hard acceleration (turbo kaput perhaps???).
Dead turbo is my guess.
19T it is
Before throwing a good turbo at it I would be doing a bit more diagnosis. They arent really prone to failing like on certain other turbo vehicles, and I have seen several that are good still even with very high mileage.
If it is dead, you will want to find out why so that you dont kill another. I have heard of return lines blocking and so on, but again not very often.
Have you checked the basics, e.g. intercooler piping? A loose/damaged hose would screw up your fuel trims, kill your boost. It would also cause the car to run very rich under load.
+1 to what Clinton said...
I'm assuming with the 850's OBD you can't look at the LT fuel trim to see if there's a leak somewhere?
But...... 19T?! :P
Just managed to work out what was wrong with it. The little rubber elbow that connects boost gauge to the tree near the throttle body is pretty much shot. Nothing a bit of electrical tape won't fix for now until I get a chance to park it and fix all of its little issues. Thanks for your help guys.
Blue smoke under load though???
Yush! Pretty blue smoke. Which would still be the turbo. Or perhaps a feature to evade pursuers....
It's be on the way out since I got the car 20k kms ago. Kind of expecting it to go kaput one day. Still yet to really die (in saying that, I run the car with coolant and decent oil unlike the previous owner I can only guess).
I'd definitely diagnose it properly before making the decision, but my money is on it being a turbo.
If you have a rich issue under load, it'd likely not be blue smoke but blacker (ie unburned fuel) rather than blueish (burned oil).
Regardless, it might be a good opportunity to get the niggles all addressed at the same time.