Blowing Smoke - SOLVED.

Lozzer

Lozzer

Member
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2,462
Hi all, during the honeymoon period of having the QPV it has started to blow smoke on startup, and when I say blowing smoke I mean a lot of It, to the point when I start It up all the local Catholics converge asking if I know who the new Pope is. It doesn't use coolant nor oil as far as I can tell and happens hot or cold, there has been 2 active Mil codes of P2187 and P2189 that refer to a lean condition of both banks on tickover but nothing else so I don't think those are related?. It doesn't smoke when driving, it's just initial startup. For amusement and giggles purposes I will try and post a video of it.
 
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Lozzer

Lozzer

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2,462
allandwf said:
White or blue? Either way it doesn't sound good.
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I would say more grey Allan, will try and get a video, it's epic lol, I can see another entry in my "going back to my 32" thread, and that's saying something, as popular belief says the 32 is the most unreliable Maserati and the mechanics favourite suck air through teeth machine on the planet....
 
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strictly

strictly

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301
Have you got a scanner? I don't actually know how to yet on a maserati, but you should be able to check the function of the lambda...hopefully someone can explain for you. A multimeter will also assist, but again I don't know on a GT and hoping someone can explain.

Out of curiosity when where they last changed? I'm any case once we figure out how to test do that first to be sure.

Also as its not using oil or coolant it goes without saying both levels are spot on right.
 
Zep

Zep

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Seems unlikely to me that you would get enough smoke to satisfy a conclave from fuel alone.

Does the amount of smoke vary based on how long it has been standing?

Do you get any smoke on the overrun from higher revs? If it’s grey, does it smell of burnt oil or slightly sweet (coolant)?
 
zagatoes30

zagatoes30

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22,848
Surely the only condition where lots of smoke is not related to engine is if there is condensation in the exhaust normally when left for a long time but this doesn't seem to be the case. Smoke must becoming from something water, oil etc. so you would expect those levels to check would you not?

Either way it needs to be checked out
 
conaero

conaero

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Lozzer said:
Thanks, causing both conditions Matt? Do the O2 sensors run open loop when cold?
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Just putting it out there for things to check, it’s pretty difficult to diagnose over the net and Phil had already mentioned the oil breather.

Seriously though, you didn’t put some diesel in it and I assume the oil level is correct and not massively overfilled?
 
Lozzer

Lozzer

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2,462
Hi thanks yeah all OK, even measured the length of the dipstick to make sure it's not unintentionally overfilled. A couple of videos, a cold start, hot start and the engine, I thought the way it is it would maybe have some serious blow by but the crank case is actually under vacuum when it's running, bit stumped ATM.
Should say it pretty cold here like 3deg, and if I leave it for anymore than say 5-10mins after turning it off when it's hot I get the cold start scenario all over again.


 
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Lozzer

Lozzer

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2,462
allandwf said:
If it had been old school, I'd have thought that was brake fluid burning.
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Hi Allan, I dismissed this early on as the brake booster assembly has been replaced and the fluid level doesn't appear to drop either (and I can't figure out how to disconnect the vac line without destroying it), although I've just been out and started her up with the booster vac line crimped....no smoke, nothing. I won't get too excited yet until I try again in the morning when it's cold. Here's hoping as I suppose a small amount of fluid can produce a lot of smoke (thinking Redex).
 
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B

Belfry

Member
Messages
242
I get this kind of smoke on my v12 456 after about 10 seconds on a cold start. It then clears, like yours. On the Ferrari I thinks it’s something to do with emissions. I’ve had this for years without an issue.
 
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