I have a 95 850 turbo sedan. On the highway, I pressed on the gas pedal to speed up. The check engine light came on. I have the following codes:
1. 4-1-4 (turbo boost too high)
2. 4-5-2 (don't know what this is)
3. 5-4-3 (don't know what this is)

Any help on the last two codes would be much appreciated. I have to say that while I like the volvo, it has been costing me quite a bit of money these past months. Had to put in a new sensor on the butterfly valve ($200 +). I just had the spring seats for the front replaced ($300). Now this. I am seriously thinking of getting rid of it.

Delgado
San Diego, CA