I was driving today checking out to make sure I had the MBC set correctly for 20psi till redline but I guess it was really cold and I got up to 23psi!!.... Then the car kind of shook well felt like a fuel cut and the "Service Engine Soon" light came on..... did I do any damage and what happened?

 

Weather changes and a MBC just don't go well together. This is really about their only downfall though. You probably did hit fuel cut or overboost and the ECU threw a code. Just unhook the battery for a few min and let the ecu reset and turn down your mbc and take it back out. You should be fine.

 

^^ Been there done that. Its cool just a overboost code it will go off or you can just reset the bat. like gtvevo said above.

 

wierd...I hit 25psi and never threw an overboost code. Owell.

 

the car is fine...i used to boost 22-23 psi all the time

 

^^^the car probably is fine

BUT, you shouldn't just let the MBC stay at it's current position. Like someone said, this is an MBC's biggest weak point. It does not adjust for outside temp. If you are not letting your ECU control your boost, then you need to be very attentive to what boost levels you are hitting...

 

Good points made by all. Good luck.

 

your car is fine

 

Dude, I had my stuff installed at a shop in Utah. Well, they set my MBC for 30psi. I ran it like that for a few months UNKNOWN until I took it to Modern. Luckily I didn't hurt anything. Well to the best of my knowledge.

 

how to adjust boost right after it installed ? do u have to run the car to redline to check the max boost ???

 

30 psi... Your car wouldnt do it theres no way. I can see like 23 but at some point your spark plugs would be melted piece of metal.