Yeti 1.4 TSi Misfire

[Chorlton]

My father in law has an old shape Yeti with the 1.4TSi engine.

 

I've noticed that when started up from cold it has a bit of a misfire on tickover.  Also, it sounds quite gruff on tickover, is this normal for the 1.4TSi engine (it sounds almost as bad as my 1.9 diesel!).

 

Any clues anybody?  What are the known faults with this engine in the Yeti?

[Rooted]

What age and mileage of 1.4TSI?

 

Does it need a New Air Filter, or Fuel Filter, and is it a case of Spark Plugs getting a bit sooted up from short journeys and cold runs,

and not used much?

Do the Spark Plugs need checked.?

 

Be aware that when the car has been sitting, you open the drivers door and the Fuel Pump Primes.

When the car has been running, this is not necessary.

It should start and go to about 1.100rpm, then drop to about 800rpm

 

Maybe have the Error Codes Checked, but Mis-fires may not show, not enough on a Cycle.

But a Software Update might be in Order,

Spark Plugs Checked, and a Spark Plug going off can shorten the life of an Ignition Coil.

 

Maybe worth changing where he buys his petrol.

Maybe put in a few tanks of Tesco Momentum 99 and give it a good Octane Fuel and see how it behaves.

[Frenchtone]

plug lead problem?

[Chorlton]

Thanks for the tips.  I'll give it a thorough going over with him this weekend.

[Urrell]

My father in law has an old shape Yeti with the 1.4TSi engine.

 

I've noticed that when started up from cold it has a bit of a misfire on tickover.  Also, it sounds quite gruff on tickover, is this normal for the 1.4TSi engine (it sounds almost as bad as my 1.9 diesel!).

 

Any clues anybody?  What are the known faults with this engine in the Yeti?

Could it be the timing chain?

[Chorlton]

The gruff engine note sounds just like the Golf in this You Tube video - so I guess it's normal?

 

 

This thread on a Scirroco forum sheds more light on the problem.  It seems the misfire/backfire on cold startup is normal.

 

http://www.sciroccocentral.co.uk/forum/viewtopic.php?f=2&t=8017&start=20

 

Are there any particular spark plugs anyone recommends for the 1.4TSI (122 BHP) engine and what should they be gapped at?

[Rooted]

What age and mileage and service history does your dads car have.?

 

Maybe best to not compare the 1.4 TSI 105ps or 122ps Turbo Engine issues with 1.4 TSI /TFSI Twincharger Engine Issues.

 

http://eurocarparts.co.uk

[Chorlton]

It's a 2010 model yeti with the 122ps (turbo only) engine, therefore I believe this is the CAXA engine.  Full main dealer service history and I believe it's on about 45k miles

[Rooted]

Service Schedule / Guideline time then for Spark Plug Replacement, 

and ask if there is a Software Update available for it.

 

EDIT. PS

FMDSH (minor, major, minor, major) might mean, Original Air Filter & Fuel Filter still in after 5 years.

[steveh1600]

Mine sounds just like that at start up and quietens down after a minute or so. Mine is the same 1.4TSI, 2012 with 30k miles.

Don't worry about it.