Camshaft difference malfunction

My friends vehicle is 3008 Vti 1.6 engine. There is a new problem I have noticed, especially in the 2nd gear, as it rose from 2000 rpm to 3000 rpm, trembling (shaking back and forth) occurred. We connected to the computer. Exhaust shaft defect appeared. however, the malfunction lamp does not illuminate. Could my problem be a sentence shift?

hi .... I was reading this engine while reading in a foreign forum. There is a chronic problem with the motor. a setting - a correction is required. investigate it.

If you have solved the problem, please inform that the readers will benefit.

Dear teacher, has the problem been solved?

Sorry I shouldn't go into the forum, my master changed the timing tensioner. solved, but sometimes the same misfire situation does not happen, it seems that we will have to connect to the computer and work on it again when I have the opportunity.

It was not something to happen with the tensioner. it has to be a piece change-a serious craftsmanship.