Problems with Toyota Carina E 1997 1,8

[areinhar]

When I was driving today the engine suddenly started to hesitate, it did not stop, but it was a lack of power in the engine. After a few seconds the engine was normal again. After a while the same thing happened. Ten minutes later my car stopped. I could easily start it again, but the same thing happened again after a few minutes. What can be the problem here? The engine is a 7A-fe.

[nondescript]

I have had exactly the same problem with the same model. I had it into the garage, and they replaced front 02 sensor, set plug leads, fuel injector and spark plugs. Did the job to begin with but less than a week later and the same problem. Not sure if they missed the original issue, or a replacement gone wrong?

Did you have any luck yourself?