A few days ago when I started my 2002 S60 the yellow triangle illuminated and the car was in limp home mode and a lumpy idle. Engine performance was illuminated.

Shut it down and re-started, the lights went away and the idle was fine.

That night I cleaned the washable air filter, removed the MAF and sprayed it with MAF cleaner.

The next day I filled the tank with non-ethanol gas and put some gas cleaner in the tank. I gave the battery a good charge on the charger.

I have yet to see the warning come back.

On the Jag-lovers list some of the models will go into limp home if the battery isn't a fully charged / happy battery. I was thinking that perhaps the Volvo is the same?

I am hoping that I don't have an approaching ETM failure. I've seen a place that will rebuild to better specs than a new Volvo OEM part. But then I have to get the computer to update the install.

I am getting seriously tied of the need to always upgrade the computer after installing some parts. A new key cost $125 for the computer, a rebuilt DIM and another computer update. There was another computer update but I can't remember. In the past 15 months we have spent $375 just to hook the darn car up to a dealer computer. Not a fan of it!

Maybe a 2002 S60 turbo isn't prone to ETM problems.