smoke coming out of exhausts on start-up

[11gen2mps]

Hi guys,

New to the forum, am so glad i found this place, just from reading through a few threads i have learned soo much about the MPS in general, and i really appreciate all the knowledge that everyone here brings to the table, you are all a wealth of information, thank you.

I have a query/problem, i purchased an MPS Gen II a few weeks back, everytime i go and start it up, a bif woft of smoke comes out from the exhausts for about the first 15 seconds, then the smoke clears. I dont know whether this is normal or not, but i have never seen a car do this before, nor did i notice it at the dealership when i was test-driving it. It was a dealer demo with no previous owner besides the dealership, so im hoping they didnt do anything suspect to the car, i can never trust dealerships.

My old car was a 3 Neo Gen I and everytime i would service it, but only after a service, it would do that exact same thing, which is normal.

Is this just something that is unique with the MPS3 or turbo cars in general??? I have never owned a turbo car before in my life and cannot figure out whether this is normal or not.

PLEASE HELP!!!

[luke 3mps]

When i started mine today it had smoke till i gave it a run.. but in saying that i had not started it in a few weeks and ecu was new..

Does it do it on cold start of hot?

My wife has a gen1 neo didnt do that..hmm

[Tiptoe]

Smoke or steam?
In this cold weather it is highly likely that moisture has built up in the exhaust system which is then being heated and cleared out.

Might also be your cat needing time to warm up.

I'm not saying that this isn't something serious... But I'm giving u alternatives to serious things

[11gen2mps]

Thanks for the quick replies guys.

luke - It does it on cold start-ups, i have not actually driven the car around enough as i havent had the time with work, to take it for a drive somewhere when it is already warm, i will let you know as soon as i do though. But i have noticed it happening everytime i do it on cold start-ups. Does your Gen II do this at all?

Tiptoe - I dont think its moisture, i started it today this afternoon at around 4pm, to show a work mate the car, it was out in the sun all day and even though its relativley cold still(17-18degrees) i dont think that is the issue, but i will definitley check it out and see from up-close whether its smoke or steam, the texture of the 'smoke' is not very thick, but im very fussy about my cars, especially when i buy a new one, i want to treat it as best i can for as long as i can.

Does anybody else's Gen II give out a little smoke on start up? I MIGHT just be paranoid, but until i am 100% sure what it is i will remain paranoid! I LOVE THIS CAR!

[luke 3mps]

I think its fuel on cold start up............. give the car some time its only new?

i have a gen1

[11gen2mps]

Smoke or steam?
Might also be your cat needing time to warm up.

Sorry, can you explain what a 'cat' is? Ill be the first to tell you that im not 100% knowledgable about cars, i came on this forum wanting to change my engine oil because i know Mazda is probably putting in average rubbish, and now im doing my engine oil, gearbox oil and getting a tuneup at Tunehouse!

[Tiptoe]

A test to see if it is moisture or cat warming up is to drive your car around till it's fully warm.
Stop. Turn it off.
Leave it for a minute and start it up again.
If no smoke occurs again... Then it is most likely one of the two things I said.
If there is smoke even on a hot start... Then im completely wrong


Snap, crackle, pop pop pop pop pop pop pop pop

[11gen2mps]

Thanks Tiptoe ill do it now and check it out. i also have a loud timing belt, although i can only hear it when i look under the bonnet wtih the car running, it doesnt sound right, its a pingy sort of noise, wing-wing-wing-wing-wing non stop. Now ive been reading through the gearbox oil sticky thread and im wondering whether THAT is the noise im referring to??? But if it is then why would it be coming out of/or near the timing belt??? Any help would be appreciated.

[luke 3mps]

Im 99% sure its ur cars choke on. Its pumping fuel in on cold start, once warm it will come off hence no smoke... being new i seriously doubt its a cat issue....

[Caffeine Fiend]

Mine did exactly the same thing for the first month or so, then it settled down. Hasn't happened since




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