lazy horse

[igor136]

Hello everyone.
I have a problem with acceleration. Sometimes my car( s6 2,2t) pulls like crazy and sometimes as a lazy horse. I do not know what to do. But the car goes better when the engine is at 90 degrees C. When at 80 degrees is very lazy. Is this normal? Boost is on the display 2.0 and falls to 1.9. And stay there. Is the problem in the old rubber hoses that are spread under pressure? Do I need a silicone hoses? The spools are TFSI. Vag com no errors. Thanks

[Majorcina]

Tako se mene auto ponasalo kad su mi bobine zajebavale

[macspring]

English, as it is an English language forum.

Thanks.

[Majorcina]

Sorry,my bad

[RoadKill]

try unplugging the multi-function temp sender its under the inlet in the water manifold big brown plug and see if it fix's the boost if boost is fix your need a new one if not you may have a small boost leek ,

[macspring]

You can buy the MFTS connector from the dealer, and you may have to as it may break up a bit when you go near it as it is so old and has heat cycled so many times.

The new one is inexpensive and well worth doing to avoid any possible issues/problems.

[igor136]

AAN use G62 for that, not mfts.
I repeat, if I leave the car running 10 minutes on idle, then go like crazy (boost 2.1). Measuring blocks are within the limits of tolerance. Work at idle is a little unstable, G69 and N71 I tried another, same thing

[turbo20v]

lmm.

[igor136]

Danke Herr

[igor136]

I measured the value of the MAF sensor. All are fine. Cleaning the MAF hot wire also works. But if I disconnect the connector from MAF, the car runs great. Just a little tried. Do you have experience?

[Majorcina]

When u disconect the MAF,the engine shud work like 1 cylinder is down on idle

[igor136]

When I disconect Maf, the engine work better, just more rpm

Edit, engine runs a little worser.
I tried with oem coil pack. Idle is better. I dont know why. Boost is the same.
I spoke with a man who has the same car but with lpg.
He said that for LPG better oem coils, than tfsi.
New sparks plugs are 90 euro

[Majorcina]

I buyed mine ngk for 55e? Did you check condition of your spark plugs?

[igor136]

They are like new, but.....you never know.
Are ngk better?

[Majorcina]

They work perfect on my car