Grilled

I’ve seen you around every now and then! I used to catch more sightings when I worked in Wymbush. But I think we’ve shared car parks in Xscape and... Dunelm weirdly 😅 If Pete still has his that makes at least 3 SE’s in MK - and there’s a completely Stock one in Woburn Sands.

I had posted a few pages ago but just in case you missed it I bought 944 in March 2017. it was sold to Unit 18 in 2015 I think and I purchased it from them.

Never noticed it before, but that’s what happens when you start looking for problems - that and this is the newest vehicle I’ve owned, everything else is/has been pre 90’s tech pretty much! I thought I solved it today when I turned my air con off and it seemed fine, but noticed later the issue persisted but didn’t fluctuate as much. I was thinking maybe my DMF is in the way out, I don’t think it’s making a knocking noise all that bad however it is one of the symptoms of it (also stumbled across this thread which was useful). I needed to install my SRE clutch and new DMF anyway, it’s being done in two weeks so I guess we’ll see if that resolves the issue then.

So little update, after new turbo being installed there’s no longer any smoke. However it is still hunting at idle sometimes! I haven’t driven it much since I needed a new downpipe and the one I had supplied with the turbo wasn’t the best fit, so after having the new one made and installed today I’ve done a little driving across town. Seems to once again drive perfectly fine then it like, maybe starts to play up at low revs? Bogging down pre-boost. Would the duel mass flywheel have anything to do with this, I noticed earlier when I was parked up and idling (when it wasn’t hunting) that the revs dropped maybe 100rpm or so when I depressed the clutch pedal?

I’ve a newer gtd2062vzk to pop in, however it’s a tighter fit than the gtb2060vklr. The silicone for the TIP doesn’t fit over the gtd’s compressor inlet and I can’t fit the OE TIP with a 80mm to 57mm reducer because it’s fouling on the aircon pipework 😩 I’ve one in the post coming tomorrow that should hopefully fit with the larger TIP, I need it on the road to my clutch appointment Saturday... it’s all go go go! It’s going to be horrendous to drive because the exhaust supplied is pressing up on the hanger bracket and I won’t have time to get it to a fabricators to sort it now - It’ll get there in the end eventually I’m sure but it’s all rather overwhelming at the moment!

I have a hardpipe kit with silicones all over including the air box to TIP (only because original one no longer fitted.) I left it a while to see what would happen, mainly if the issue got worse or reoccurred. Surprise surprise it came back in full force, bad idle and all! I didn’t want to pull the injectors off myself within the correct tool so decided to try and get in into a local garage that could but had to wait over a week. So I pulled the turbo off to check it over and sure enough there was oil all swirled about. Shame as turbo hasn’t even been fitted a year, I guess it was a dud but it was sat around too long to be under warranty now. Once it’s running again I can see how the idle goes but I suspect it was turbo related as well.

The rough/erratic idle has stopped now thanks to replacing the MAF, Just the the smoke to diagnose now.

I replaced the MAF sensors a couple days ago but only really made short journeys but already the idle seems better. I gave it the beans on the way home from work and afterwards the idle behaved itself staying steady where it should. This has now led to showing the symptoms, I’ve attached a video showing the smoke on idle (again only when warm) it’s looks like blue/white do yeah oil and possibly overfueling? Once again when driving it’s fine and no signs of blue or white smoke. IMG_7832.MOV

So I’ve been having this issue on and off for a few weeks where sometimes I’ll find my vrs hunting when idling up and down. Cold starts it starts and idles fine, it even drives fine hot or cold it’s just when it starts to idle when I’ve stopped it’ll just hunting between 700-1000 rpm (or sometimes less). I had a new piper cam and larger injectors fitted back in January/February then mapped in afterwards and it has been running great until about 5 or 6 weeks ago. I am also getting a bit of blue smoke out the exhaust when this starts happening but only then, when I’m driving there’s no smoke of any colour (apart from black on hard acceleration). Can anyone help me diagnose the issue?