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Xantia of Desires - Farewell xantia!


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Posted

I can't remember whether you have already or not but have you tried injector cleaner?

Posted

Like said above . Disconnect / plug the boost sense pipe to the UFO when you are round the corner from the test centre .

I can't say I really agree with this approach but it will get you out of a sticky situation.

I'm no greeny but I don't really like to see too many cars belching out smoke

Posted

No, not tried injector cleaner. I don't think it needs it, as in it doesnt smoke in normal driving, and I really tried to get it to smoke on the way to and from work today. But nothing.

 

Nothing for 22 miles of b road, a road, m40 and a road. In fact I got to work a bit early today, and my nate had just arrived too so I showed him the smoke. As in just stopped after a 35 minute drive, parked, neutral, full throttle, burp of black smoke.

 

Coming home I held it at 4.5k in the most unmechanically sympathetic way when I got off the m40, and no smoke that I could see in the mirrors.

 

Got to stop ragging it about now though, got 1/4 a tank and I need it to last, bit skint now!

Posted

Like said above . Disconnect / plug the boost sense pipe to the UFO when you are round the corner from the test centre .

I can't say I really agree with this approach but it will get you out of a sticky situation.

I'm no greeny but I don't really like to see too many cars belching out smoke

Tried it disconnected, still smoked. Perhaps not as black, but still lots of smoke. As it hits top revs with your foot buried in the carpet, belch. Lift off, and it's gone, whisping down the road romantically

Posted

I think so. If it smoked more, then I'd lean towards magic potion, but it doesn't, so it's got to be something physical. It needs Danny's magic hands!

 

If it was a dodgy hoover turbopower, I'd change the motor fan, seal up the fancase and mod the tool suction slide, but it's not, and therefore I know nothing!

Posted

Just drive it normally till Saturday and don't tinker any more or try and get it hot.

It sounds like a problem that is easily sorted with not many tools and a bit of patience.

 

 

Panic from Saturday afternoon onwards.

Posted

Stop it! I like my car. Ever since I sat in it pissed on homebrew at SF16 I loved it! It's just a minor blip, it'll be ok...

 

possibly...

Posted

Sorry for letting you sit in it then :-( feel bad you having hard times mate. I didn't touch anything on it though. I didn't understand it fully to tinker with it and as it ran fine I had no reason to mess it about.

Posted

No don't be sad, these things happen! I'm still very pleased with it.

 

Its just one of those things, the gamble we take when buying modified cars!

Posted

i thought it was not opening the whole UFO up and physically turning the pin, I just popped the cap off and undid the locknutted screw 2 turns.... worried now (although it didn't break, I just won't play with it anymore)

 

I tried taking the boost hose off and revving it and still got the soot, didn't bung it up though.

 

Meh, I'll wait until Saturday. Want to find out how it all works anyway and maybe get it de-tuned slightly for more mingebaggeryness with the fuel, it's nice to be able to do 80 in 3rd but I can't say when I last did it bar last week to clear it out in the hope it sorted it.

 

What you did was fine. All that screw outside does is set how far down the pin sits at rest.

Posted

Oh Chompy. Did it pass an MOT in its tuned state?

I its had a hard time getting it through before but everyone's had more friendlier testers who ragged it until it was nice and hot and it squeaked through. I haven't got that luxury, although I'm hopeful that if it's sorted now, next year's test should be a breeze!

 

Id quite like to be able to tweak it up and down, it is fun when fast, but I need Danny to show me what to do and how to reset it

 

Its more economical atm though, 100 miles and the needle hasn't moved! It's also lovely and silent with the new exhaust

  • Like 4
Posted

Don't know much about these. Its the fuel pump a bit like a carb, in the way the mixture can be adjusted? Does it have an ecu to control the fueling or is it all manual adjustments?

Posted

It has an ecu, but I don't know if it controls anything

 

For emissions, the pump is still mostly mechanical bar an electronic timing advance (possibly?).

Posted

I am in no way expert on xud's, but if it's not boosting properly it will not clear the black smoke. Does it drive like a 90bhp turbo diesel should? Or could you increase the boost to clear the smoke?

Posted

Nah its properly quick once you get above 3k revs. Will do 85 in 3rd before I fully realise! A few days after I got it I got it to defiantly mot 120 on the m40 quite easily, although it felt a bit unstable, was at the red line and I've never done it again (came across someone doing 75 in L3 on an otherwise empty motorway, but couldn't call him a cocktard because I was being more illegal)

 

Its always felt less nippy at lower revs than the zx did, but the zx weighed alot less.

Posted

Do be sure all the tyres are in 1st class order and not low on pressure at those speeds, if it felt unstable then chances are something's not right, mebbe spheres? [/oldfart]

Posted

The tyres are old, the spheres are hard.... The wheel wobble vanishes at over 90 though! (well, it did, not tried it recently!)

Posted

Well magic Danny has worked his magic! So I now have a less harsh lda pin, rotated to the less harsh part, and he turned the fuel right down and so far, no black smoke!

 

Thanks Arthur! Will get it hot on the way home and double check the smoke

Posted

:mrgreen:  great news, hope it passes. If it does you need one of these for the lol  :mrgreen:

post-18138-0-73661500-1481979546_thumb.jpg

Posted

It had one of those on it when I bought it! It now just reads no poke...

Posted

Hopefully it passes now dude.

 

 

 

 

 

 

 

 

Then you can turn the LDA back the other way and crank the fuel again, just maybe not quite as much next time.

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