Hello everyone, I follow this site for a while now and I like it very much!
(Excuse my English, please, it is not my first language...)
McLaren finally said there are problems with Montoya's engine:
"McLaren will begin investigations this week in a bid to get on top of the minor engine problems that marred Juan Pablo Montoya's Bahrain Grand Prix weekend.
The Colombian suffered from engine mapping issues that left him down on power compared to teammate Kimi Raikkonen when the engine was in certain modes - and that played a part in his disappointing start to the campaign.
...
We have a number of different modes of operation with the engine. We have economy, super economy and full mode and certainly in the lesser modes of control there was something in the engine that we were trying to track down all weekend that gave him a slight element of disadvantage..."